If n and k are equal, the rate of a process that follows Avrami equation is 0.093 s.
K and N in the Avrami equation are what?Here, n is a constant with an usual range of 1 to 4 and K(T) is indeed a thermally activated, air temp constants (K(T) = Ko exp [E/kT]). The nucleation and growth terms that are time- and temperature-dependent have both been absorbed by constant K(T) in this form.
Avrami exponent: What is it?For volume precipitates inside the placed directly by one-dimensional (1D) growth, the Avrami kinetic notation is equal to 1, for precipitates on the surface followed by 1D growth from the surface inside the material, to 2, for quantity nucleation and 2D growth, and to 4, for volume crystallization and 3D growth.
Briefing:Avrami Kinetics-compliant reactions occur at a rate of 0.093 s1.
Given data:
n = 1.7
k = 0.007
let's assume y = 0.5
where : n = 1.7, y = 0.5, k = 0.007,
Insert values into equation ( 2 )
t = 10.74 secs
Rate = 1 / t = 1 / 10.74
= 0.093 s⁻¹
We may then state that 0.093 s is the reaction that follows Avrami kinetics.
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While standing on frictionless ice, you (mass 65.0 kg ) toss a 4.50g rock with initial speed 12.0m/s . The rock is 15.2 m from you when it lands. Take the axis on the ice surface in the horizontal direction of the motion of the rock. Ignore the initial height of the toss. At what angle did you toss it? How fast are you moving? (cm/s)
While standing on frictionless ice, you (mass 65.0 kg ) toss a 4.50g rock with initial speed 12.0m/s.At 37.8 degrees angle did you toss it.
Back to including the slide. The range equation is
Eq1: 15.2 - Vs*t = 12^2/g*sin(2A) (t is the time of flight in all this) Conservation of momentum gives
Eq2: 65Vs = 4.5*v*cos(A) or Vs = 0.8308*cos(A)
Vertical velocity at the turnover point is 0 = Vi + at = 12*sin(A) - gt/2 or Vertical velocity Eq3: t = 2.45*sin(A)
initial speed=12.0m/s
Sub eq3 into eq1 to get
15.2 - 2.45*Vs*sin(A) = 14.7*sin(2A)
Sub eq2 in for Vs Vertical velocity:
15.2 - 2.45*0.8308*cos(A)*sin(A) = 14.7*sin(2A)
15.2 - 2*sin(A)*cos(A) = 14.7*sin(2A) a bit of a roundoff here to get the 2
15.2 - sin(2A) = 14.7*sin(2A)
15.2 = 15.7*sin(2A)
sin(2A) = 0.97
A = 37.8 degrees
To get the speed of the person, you would just use eqn2.
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if a planet had a semi-major axis length of 2.3 au as it orbits the sun, what would be its period in years?(
The period of the planet is obtained as 3.5 years .
What is the period?We know that we can be able to obtain the period of the planet by the use of the Kepler's law. By the use of the Kepler law, we can see that the square of the period of the planet is equal to the cube of the length of the semi major axis.
We can now write;
T^2 = r^3
Now we have the semi-major axis length as 2.3 au.
We would now have to substitute the values and then obtain the period of the planet from the equation as;
T = r^3/2
T = (2.3)^3/2
T = 3.5 years
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g a 80 kg woman on roller skates pushes a 30 kg girl, also on roller skates, with a force of 100 n. the magnitude of the force exerted by the girl on the woman is group of answer choices 200 n 100 n 50 n 40 n 38 n zero
The magnitude of the force exerted by the girl on the woman is 100 N .
How is it calculated?Given,
m₁ = 80 Kg
m₂ = 30 Kg
F1 = 100 N
F₂ = ?
By applying Newton's third law of motion, the force exerted by the girl is equal in magnitude to the force exerted by the boy but in opposite direction.
F₁ = F₂
F₁ = m₁ × a₁
F₂ = m₂ × a₂
∴ 100 = 80 × a₁
∴ a₁ = 100 / 80
∴ a₁ = 1.25 m/s
we know,
m₁ × a₁ = m₂ × a₂
∴ 80 × 1.25 = 30 × a₂
∴ 100 = 30 × a₂
∴ a₂ = 100 / 30
∴ a₂ = 3.33 m/s
Therefore,
F₂ = m₂ × a₂
∴ F₂ = 30 × 3.33
∴ F₂ = 100 N
Hence, the magnitude of the force exerted by the girl on the woman is 100 N .
What is magnitude of force?A force magnitude is a number that expresses the A force magnitude is a number that expresses the strength of a force.Example: Suppose the force is = 10 N towards the east. "East" represents the direction, and "10" represents the strength of the force. A quantity is therefore basically a "value" or "amount" of a physical quantity it is always a scalar quantity.Can learn more about the magnitude of force from https://brainly.com/question/20719505
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what can you conclude about energy transformations and the conservation of mechanical energy for the motion of a pendulum
Explanation:
At every point in the motion of the pendulum the total mechanical energy is conserved. The sum of the gravitational potential energy and the kinetic energy, at each point of the motion, is a constant, which is the total mechanical energy.
a student drops a basketball into a pool from a height of 5 meters while a friend records the approximate splash height. they want to make a bigger splash in their next trial. how can they achieve this?(1 point) responses they can drop the same ball from a lower height. they can drop the same ball from a lower height. they can drop the same ball with less speed. they can drop the same ball with less speed. they can use a ball that has a larger circumference. they can use a ball that has a larger circumference. they can use a ball with more mass.
The students only need to use a ball with a larger circumference in order to make a bigger splash in their subsequent trial.
How is volume and mass ?We can state that an object's volume and mass are directly proportional. The mass of the object rises directly in proportion to the volume. The density of the substance is equal to the gradient of the graph.
Volume is the amount of space an object or substance occupies. Mass is a measurement of how much matter there is in an object or substance. Density is the ratio of an object's or substance's volume (the amount of space it occupies) to the amount of matter it contains.
Similarly in this question the basket ball being bigger will displace more area.
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What is the frequency of a wave with a velocity of 500 m/s and a wavelength of 25 m?.
Answer:
[tex] \Huge{\bold{20 Hz}} [/tex]
Explanation:
The frequency of the wave given it's velocity and wavelength can be found by using the formula
[tex] frequency = \frac{v}{ \lambda} [/tex]
where [tex] \lambda [/tex] is the wavelength
From the question
v = 500 m/s
[tex] \lambda [/tex] = 25 m
We have
[tex]f = \frac{500}{25} = 20 \\ [/tex]
We have the final answer as
20 HzHope this helps you
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Two different bumper designs are shown here.
Recall that if the colliding objects have hard surfaces, the collision is elastic. Based on this description, which bumper design is more likely to result in an elastic collision? Predict how this bumper design will change the force that car 2 experiences during the collision.
The design that has the metal bar would increase the chances of an elastic collision and lead to an increase of the velocity of the car after collision.
What is elastic collision?We know that an elastic collision is one in which there is a conservation of the kinetic energy of the momentum. Recall that the colliding particles would have to constitute a closed system such that there is no loss in the momentum of the objects that are colliding.
We have two designs of the bumpers of the cars. We know that the balloon design would have more tendency to have this car stick to the other car and create an inelastic Collison.
However, with the metal bar design, there is less tendency that the cars would stick together after collision and we would have an elastic collision. The effect of this is that velocity of the car 2 may increase after the collision.
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How fast would a light beam appear to einstein if he were traveling in the same direction at 90% of the speed of light?.
If Einstein were traveling in the same direction of a light beam at 90% of the speed of light, the light beam would be travelling at 10% of speed of light.
Speed of light, c = 3 * 10⁸ m / s
90 % of Speed of light = 3 * 10⁸ * 0.9
90 % of Speed of light = 2.7 * 10⁸ m / s
Relative speed = 3 * 10⁸ - 2.7 * 10⁸
Relative speed = 0.3 * 10⁸ m / s
Relative speed = 0.1 c = 10% of speed of light
Relative speed of one object with respect to another is the difference in speeds of both objects if they are travelling in same direction. Relative speed of one object with respect to another is the sum of speeds of both objects if they are travelling in opposite direction.
Therefore, if Einstein were traveling in the same direction of a light beam at 90% of the speed of light, the light beam would be travelling at 10% of speed of light.
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a weight-lifter strains to lift a heavy weight and there is no movement of the person's arms holding on to the weight. this type of contraction is called a(n) contraction.
A weight-lifter strains to lift a heavy weight and there is no such movement of the person's arms holding on to the weight. This type of contraction is known as isometric.
In science and engineering, the weight of an object is the force appearing on the item due to gravity. some general textbooks define weight as a vector amount, the gravitational force performed at the object. Others outline weight as a scalar quantity, the importance of the gravitational pressure.
The word weight denotes an amount of the equal nature as a pressure: a load of a frame is fabricated from its mass and the acceleration due to gravity."
We regularly use the words 'mass' and 'weight' interchangeably, however, they suggest quite different things. Your mass is equal regardless of in which you go within the universe; your weight, alternatively, adjustments from place to region.
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In which concept does price and quantity supplied move in the same direction?.
The concept law of supply shows that price and quantity supplied move in the same direction.
The law of supply relates price changes for a product to the quantity supplied. In differentiation from the law of demand, the law of supply relationship is coordinated, not converse. The higher the cost, the higher the quantity provided. Lower costs mean decreased supply, all else held equal. Higher prices donate suppliers an incentive to supply more of the item or product, expecting their costs aren't expanding as much. Lower costs result in a fetched crush that checks supply. As a result, supply inclines are upwardly inclined from cleared out to right. As with demand, supply limitations may constrain the cost flexibility of supply for a product, whereas supply shocks may cause an unbalanced cost to alter for a basic commodity.
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An 8.25kg point mass and a 15.0 kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point between the two masses 13.0cm from the 8.25kg mass along the line connecting the two fixed masses. Find the magnitude of the acceleration of the particle. Find the direction of the acceleration of the particle.
The direction of the acceleration of the particle is 8.825 kg mass.
Solution:
Acceleration = G m1 /r1^2 - G m2/r2^2
=6.67*10^-11 (0.048 - 0.01) towards 8.825 kg mass
= 2.5346 *10^-12 m/s^2 towards 8.825 kg mass
Particles have velocity in the negative direction and constant acceleration in the positive direction. When an object accelerates, its acceleration is in the same direction as its motion. When an object slows down, its acceleration is in the opposite direction of its motion.
Acceleration in uniform circular motion is toward the center along the radius. Instantaneous acceleration is the limit of average acceleration as Δt approaches zero. The velocity vector v always points in the direction of travel. The acceleration vector can point anywhere.
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If this problem is solved assuming (wrongly) that all the ice melts, a final temperature of T = ?16.5�C is obtained. The only way that could happen is if the system were not isolated, contrary to the statement of the problem. In the exercise, you must also compute the thermal energy needed to warm the ice to its melting point. QUESTION What effect would doubling the initial amount of liquid water have on the amount of ice melted? (Select all that apply.) Half as much of the ice will melt. Twice as much of the ice will melt. The final temperature will be higher. The final temperature will be lower. The final temperature will be the same. All the ice will melt.
The effect on doubling the initial amount of water will be twice as much of ice will melt.
Let us suppose that,
M = mass of ice = 4.8 kg
L = latent heat of fusion = 334000 J/kg
Heat of melting of ice is given as
Qmelting = ML = (4.8)(334000) = 1603200 J
m = mass of water = 10.6 kg
c = specific heat of water = 4186
ΔT = change in temperature = 16.5 °C
Heat lost by water is given as
Qlost = m c ΔT = (10.6) (4186)(16.5) = 732131.4 J
As the heat lost by water is smaller than the heat required to melt all the ice , hence all ice does not melt and hence the final temperature is 0°C.
Therefore, the mass of ice melt can be calculated as follows:
M' = mass of ice melted
Using the law of conservation of heat,
M' L = Qlost
M' (334000) = 732131.4
M' = 2.19 kg
Thus, the amount of liquid water is twice the mass of ice melted.
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particle of mass m starts from rest at position x = 0 and time t = 0. it moves along the positive x-axis under the influence of a single force xf bt=
The velocity v of the particle of mass m that starts from rest at position x = 0 and time t = 0 and moves along the positive x-axis under the influence of a single force Fx = bt, where b is a constant is b t² / 2 m
F = m a
a = dv / dt
F = Force
m = Mass
a = Acceleration
dv = Change of velocity
dt = Change of time
F = m dv / dt
Fx = bt
m dv / dt = bt
dv = ( b / m ) t dt
Integrating on both sides,
v = b t² / 2 m
Therefore, the velocity v of the particle is given by b t² / 2 m
The given question is incomplete. The complete question is:
A particle of mass m starts from rest at position x = 0 and time t = 0. It moves along the positive x-axis under the influence of a single force Fx = bt, where b is a constant. The velocity v of the particle is given by b t² / 2 m
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while the prefrontal is necessary for the manipulation of order information in memory, the ... deals with its maintenancewhile the prefrontal is necessary for the manipulation of order information in memory, the posterior parietal cortex deals with its maintenance
The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models.
what is parietal cortex ?
The parietal lobe is also an important component of spatial information, as it allows us to judge size, distance, and shape. The capacity to read written language and solve mathematical issues is provided by an unique triangular-shaped region known as the parietal association cortex.
The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models. The neural correlate of working memory has traditionally been thought to be persistent activity during the delay period of working memory tasks, following the offset of stimuli that subjects are required to remember. Several findings in recent years have cast doubt on the role of this activity. According to some, activity in other brain areas, such as the primary visual and posterior parietal cortex, is a better predictor of information maintained in visual working memory and working memory performance;
dynamic patterns of activity may convey information without requiring any persistent activity at all; and prefrontal neurons may be ill-suited to represent non-spatial information. about the features and identity of remembered stimuli.
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for a standing wave formed on a string with fixed boundaries at either end, the frequency of the wave of harmonic order is related to the distance between the boundaries and the wave speed by group of answer choices
For a standing wave formed on a string with fixed boundaries at either end, the frequency of the wave of harmonic order is n ( v / 2 L ) where n = 1, 2, 3...
For a standing wave formed on a string with fixed boundaries at either end, the wavelength is λ / 2
Let the distance between the boundaries be L.
v = f λ
v = Wave speed
f = Frequency
λ = Wavelength
λ = v / f
L = n λ / 2
L = n v / 2 fn
fn = n ( v / 2 L ) where n = 1, 2, 3...
Therefore, for a standing wave formed on a string with fixed boundaries at either end, the frequency of the wave of harmonic order is related to the distance between the boundaries and the wave speed by n ( v / 2 L ) where n = 1, 2, 3...
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a driver will have more time and space to exercise options by searching ........ seconds ahead, identifying objects that could require a change in speed or direction 12-15 seconds ahead, and possible alternative path 8-12 seconds in advance.
A driver will have more time and space to exercise options by searching 20-30 seconds ahead.
what is excersise options?1. Shrug holds The main muscles that shoulder shrugs target are the trapezius muscles. ...
2. Tighten the glutes The easiest way to work out the buttocks while being in a sitting position is to simply squeeze the muscles. ...
3. Feet lifting Being stuck behind the wheel for long hours can hurt the feet. ...
4. Abdominal Hollowing ...
5. Seated Pelvic Tilt ..?
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in a game of tug of war the red team is pulling with a force 500 n to the left while the blue team is pulling with a force of 340 n to the right. what will be the net force of the flag in the middle?
The tug-of-war winner is the team who pulls the rope the hardest.
Reason being: The rope moves in the direction of greater force.
We are familiar with Newton's second law of motion, which describes circumstances in which all of the forces are not balanced. As a result, the acceleration is a function of our applied force. Inversely correlated with body mass is acceleration as well. The acceleration of the body produced is proportional to the net force we apply and in the direction of the force we apply, which is an alternative explanation for the second law. Consequently, the rope is pulled harder when playing tug of war. The acceleration of the rope increases as more force is applied. And the direction of the rope's movement is in the direction of a stronger force. Rope motion is in the direction of greater force.To know about Newton's second law of motion-
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in a laser generator, what is found at both ends that allows for the amplification and stimulated emission of laser light?
In a laser generator, micro reflectors is found at both ends that allows for the amplification and stimulated emission of laser light.
What is laser generator?
A laser beam is produced by a laser generator that uses electrical discharges to excite a gas mixture. This kind of generator operates on the same fundamental tenet as a laser beam, which is to "pump" a medium with energy before the medium returns to its initial state and emits photons.
What is amplification?
amplification (countable and uncountable, plural amplifications) (countable and uncountable, plural amplifications) the process or outcome of enlarging, extending, or adding the act of independently increasing a quantity, particularly voltage, power, or current, or the result of doing so (physics). Gain. (Electronics)
Therefore, in a laser generator, micro reflectors is found at both ends that allows for the amplification and stimulated emission of laser light.
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you are performing an analysis on your model. you select five faces, 3 edges and 2 vertices and apply a force of 20lb. what is the total force applied to the model using solidworks simulation?
The model is subjected to a 100lb total force with the use of solidworks simulation.
How do you locate the reaction force in a simulation using solidworks?
Following analysis execution, right-click Results and choose List Result Force to display response forces. Select Reaction force from the Options menu in the PropertyManager. Additionally, you can choose Results Advisor > List Result Force (Simulation CommandManager). For rigid bodies, reaction forces are not considered.
What standards are most appropriate for evaluating ductile material failure in fusion 360 simulation?The default criterion is yield strength. The yield strength to Von Mises equivalent stress ratio is used to calculate the safety factor. For ductile materials like steel and aluminum in particular, the Von Mises stress is a reliable indicator of failure.
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what is the intensity of an electromagnetic wave with a peak electric field strength of 127 v/m? (answer must be in three digits)
The Intensity of the electromagnetic wave with a peak electric field strength of 127 V/m is 20.9W/m².
The relation between the intensity of an electromagnetic wave and the peak electric field strength is,
I = ecE²/2
Where,
e is the electric permittivity,
c is the speed of the electromagnetic wave,
E is the peak electric field.
The peak electric field is given to be 127 V/m, so, putting values,
I = 8.85 x 10⁻¹² x 3 x 10⁸ x 127 x 127/2
I = 20.9 W/m².
So, the intensity of the electromagnetic wave is 20.9 W/m².
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A pulley on a frictionless axle has the shape of a uniform solid disk of mass 2.10 kg and radius 20.0 cm. A 1.90 kg stone is attached to a very light wire that is wrapped around the rim of the pulley (Figure 1), and the system is released from rest. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of An unwinding cable ii. Part A How far must the stone fall so that the pulley has 4.50 J of kinetic energy? Express your answer with the appropriate units. THA ΠΑ 2 ha Value Units Submit Request Answer Part B What percent of the total kinetic energy does the pulley have? Express your answer in percent.
The stone will fall 0.68 m so that the pulley has 4.50 J of kinetic energy.
The percent of the total kinetic energy of the pulley is 35.6 %.
What is the law of conservation of energy?According to this law, energy can only be converted from one form to another and it can neither be created nor destroyed. Total energy before and after the event remains conserved.
Given, the mass of the pulley, M = 2.10 Kg
The mass of stone, m = 1.90 Kg
The radius of the pulley, R = 20 cm
The kinetic energy of the pulley = 4.50 J
The kinetic energy of the pulley, I = (1/2) I ω²
[tex]{\displaystyle \frac{1}{2} I\omega^2 = 4.50\; J[/tex]
[tex]{\displaystyle \frac{1}{4} M v^2 = 4.50\; J[/tex]
[tex]{\displaystyle \frac{1}{4} \times 2.10 \times v^2 = 4.50\; J[/tex]
v² = 8.57 m²/s²
From the law of conservation of energy:
KE(pulley) + KE (stone) + PE (mass) = 0
[tex]{\displaystyle 4.50\; J + \frac{1}{2} m v^2-mgh =0[/tex]
[tex]{\displaystyle 4.50\; + \frac{1}{2} (1.9) \times 8.57=1.9 \times 9.8 \times h[/tex]
h = 0.68 m
The percent of total kinetic energy is given by:
[tex]\% KE_p = \frac{KE_p}{KE_{total}}\times 100[/tex]
[tex]\% KE_p = \frac{4.50}{4.50 + \frac{1}{2} \times 1.9\times 8.57}\times 100[/tex]
[tex]\% KE_p = 35.6 \%[/tex]
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suppose that we look at a photograph of many galaxies. assuming that all galaxies formed at about the same time, which galaxy in the picture is the youngest?
If all galaxies formed at about the same time, and when we look at a photograph of many galaxies, the galaxy that is the farthest away would be the youngest.
Small clouds of stars and dust whirling across space are considered to give origin to galaxies. Gravity propels these items careening into one another as additional clouds approach, knitting them into bigger spinning packs. From this expalation, we know that the most distant galaxy is the youngest galaxy.
The majority of galaxies are between 10 and 13.6 billion years old. Because our universe is around 13.8 billion years old, most galaxies formed when the cosmos was very young! Astronomers estimate that our Milky Way galaxy is 13.6 billion years old. GN-z11 is the youngest and the farthest galaxy discovered by Astronomers.
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in what direction relative to a magnetic field does a moving charged particle experience maximum deflecting force? minimum deflecting force?
Charged particles will experience a maximum force when traveling perpendicular to the magnetic field.
Which way does the magnetic field deflect charge?In accordance with this law, an electron or other charged particle traveling in a magnetic field will be deflected by the field at a right angle to both the field's direction and the direction of the particle. (As you apply that rule, keep in mind that the cathode ray electrons are moving in the opposite direction to that of regular current.)
How do you tell which way the deflection is going?A positive charge that is traversing a magnetic field perpendicularly at the top is deflected. The positive charge will be deflected in the direction that is predicted by the right-hand rule, the bottom. Positive charges will be deflected according to a related left-hand rule.
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a 5.0-m-diameter merry-go-round is turning with a 4.5 s period. part a what is the speed of a child on the rim? express your answer using two significant figures.
The speed of the merry-Go-round is 3.492 m/s
Given: Time period of Merry-go-round = 4.5 seconds
Diameter of the ring = 5.0m
this implies Radius=2.5m
Distance Travelled to complete 1 circle
= 2πr = 2*π*2.5 = 5π
Time Taken to complete 1 circle = 4.5 seconds
Speed = Distance Travelled/time taken
⇒ speed = 5 pi / 4.5
speed = [tex]\frac{5 * 22}{7 * 4.5}[/tex]
speed = 110 / 31.5
speed = 3.492 m/s
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igure 9-24 shows an overhead view of four particles of equal mass sliding over a frictionless surface at constant velocity. the directions of the velocities are indicated; their magnitudes are equal. consider pair- ing the particles. which pairs form a system with a center of mass that (a) is stationary, (b) is stationary and at the origin, and (c) passes through the origin
The pairs that form a system with a center of mass that
(a) is stationary are ac, bc and dc.
(b) is stationary and at the origin is bc
Coordinates of the four particles are:
a = ( - 4 m , 2 m )
b = ( 4 m , 2 m )
c = ( - 4 m , - 2 m )
d = ( 4 m , - 2 m )
The center of mass of two particles of equal masses lies exactly at the center of the tile joining them. If two particles are moving in the opposite direction with equal speeds, then their center of mass will be stationary.
Therefore, the pairs that form a system with a center of mass that
(a) is stationary are ac, bc and dc.
(b) is stationary and at the origin is bc
(c) passes through the origin are ad and bd
The given question is incomplete. The complete question is:
Figure 9-24 shown in the image attached shows an overhead view of four particles of equal mass sliding over a frictionless surface at constant velocity. The directions of the velocities are indicated; their magnitudes are equal. Consider pairing the particles. Which pairs form a system with a center of mass that (a) is stationary, (b) is stationary and at the origin, and (c) passes through the origin?
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a chair lift loaded with two passengers weighs 500 lbs. determine the forces in the cable to the left and right of the lift.
The forces in the cable to the left and right of the lift are Tright = 939.7 lb and Tleft = 984.8 lb.
Equilibrium of the system
∑ Fx= 0 ⇒ Tleftcos20° = Tright cos 10°
Tleft = cos10°/cos20° × Tright
Tleft = 1.048 Tright
∑Fy = 0 ⇒ Tleftsin20 + Trightsin10 = W
(1.048 × sin 20° + sin 10°) Tright
0..532 Tright = 500lb
Tright = 939.7 lb
Tleft = 1.048 × 939.7
Tleft = 984.8 lb
The state of a system when neither its internal energy status nor the state of motion tends to change over time. If a simple mechanical body experiences neither linear acceleration nor rotational acceleration, it is said to be in equilibrium. If this state is not disturbed by an external force, it will persist unbrokenly. When all forces acting on a single particle are added together and equal to zero, equilibrium results.
The complete question is attached as an image.
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what is the length of a single pendulum oscillating in earth's surface having the same period as t accept above for each of four masses
A straightforward pendulum with a period of one second will be 0.25 meters, or 25 cm, long.
What are a pendulum's period and frequency?Please feel free to explore how the pendulum would function on different planets, but we'll use the Earthly value of 9.80665 m/s2 for our calculations. Use the formula above to get the oscillation period: T = 2π√(L/g) = 2π * √(2/9.80665) = 2.837 s . As the period's reciprocal, determine the frequency: f = 1/T = 0.352 Hz .
What are the two things that influence a pendulum's period?The length of the string and gravitational acceleration are two elements that can alter a pendulum's period.
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What is the frequency of radio wave with a wavelength of 25 m?.
The frequency of a radio wave with a wavelength of 25 m is 0.12 × 10⁸ Hz.
An example of electromagnetic radiation is radio waves. The wavelength of a radio wave is substantially greater than that of visible light. Radio waves are widely used by people for communication. Both rectangular and circular antennas are used by this radio tower to send and receive radio frequency energy.
The relationship between frequency and wavelength is inversely proportional. The wavelength of the wave with the highest frequency is the shortest.
Wave velocity=Wavelength× Frequency
Given, λ = 25m
c = 3 × 10 ⁸ m/s
f =?
c = λ × f
3 × 10⁸ = f × 25
f = 3 × 10⁸ / 25
f = 0.12 × 10⁸ Hz.
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a solid iron ball is thrown directly downward, with an initial speed of 8.10 m/s, from the top of a tower at a height of 29.7 m. how much time (in s) does it take before striking the ground?
a solid iron ball is thrown directly downward, with an initial speed of 8. The time (in s) it takes before striking the ground: a=g=9.8 m/s2 a = g = 9.8 m / s 2 is the acceleration due to gravity.
Initial velocity is the velocity at time interval t = zero and its miles are represented with the aid of u. it's miles the velocity at which the motion starts off evolved. they're four initial velocity formulations: (1) If time, acceleration, and final pace are supplied, the preliminary velocity is articulated as. u = v – at.
Initial velocity describes how fast an item travels when gravity first applies force on the object. alternatively, the final velocity is a vector quantity that measures the rate and course of a transferring frame after it has reached its maximum acceleration.
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a scale from which a rock is suspended reads 5 n when the rock is out of the water and 3 n when the rock is completely submerged in the water. the density of the rock is
The density of the object is 1.67 g/cm^3.
What is the density of the object?We know that we can be able to obtain the relative density of an object as the ratio of the weight of an object in air to the weight of the object in water. Another name for the relative density of the object is also the specific gravity of the object.The density of an object is the mass of the object compared to its volume. The equation for density is: Density = mass/volume or D = m/v. Each substance has its own characteristic density because of the size, mass, and arrangement of its atoms or molecules.Density is the mass of an object divided by its volume. Density often has units of grams per cubic centimeter (g/cm3). Remember, grams is a mass and cubic centimeters is a volume.The density of an object or substance is its mass divided by its volume: Density = Mass ÷ Volume. The units of density depend on the units used for mass and volume, but are usually: g/cm³ (if mass is measured in g and volume in cm³). The more dense a substance is, the heavier it feels for its size.Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth's density is 5.51 grams per cubic centimetre.Thus;
Relative density = Weight in air/weigh in water
= 5 N/3N
= 1.67
Given that the density of water is 1 g/cm^3
Density = Relative density * density of water
= 1.67 * 1 g/cm^3
= 1.67 g/cm^3
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