Answer:
154 is the speed i think, correct me if i am wrong
Explanation:
The speed of the given wave is 160.86 m/s. The speed of the wave can be calculated by dividing the frequency by the wavelength of the wave.
How to calculate the speed of the wave?The speed of the wave can be calculated by dividing the frequency by the wavelength of the wave.
[tex]s = \dfrac f \lambda[/tex]
Where,
[tex]f[/tex] - frequency = 370.0 Hz.
[tex]\lambda[/tex] - wavelength = 2.30 m
Put the values in the formula,
[tex]s = \dfrac {370}{2.3}\\\\s =160.86 \rm \ m/s[/tex]
Therefore, the speed of the given wave is 160.86 m/s.
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The speed of all electromagnetic waves is 3. 00 × 108 meters per second. What is the wavelength of an X-ray with a frequency of 1. 18 × 1018 Hz? 2. 54 × 1026 meters 3. 93 × 109 meters 2. 54 × 10-10 meters 3. 93 × 10-11 meters.
4. A 20 N force pushes a cart. That cart accelerates at a rate of 10 m/s/s. What will the acceleration of the
cart be if the FORCE is doubled?
a) 40 m/s/s
I
b) 20 m/s/s
c) 10 m/s/s
d) 5 m/s/s
Does gravitational potential energy increase when getting closer to planet universal gravitation law.
Answer:
Yes
Explanation:
When the planet moves farther away, the speed and kinetic energy decrease, and the gravitational potential energy increases.
Who invented the first practical incandescent light bulb?.
Answer:
Edison
Explanation:
Among other notable inventions, Edison and his assistants developed the first practical incandescent lightbulb in 1879 and a forerunner of the movie camera and projector in the late 1880s.
How to derive the formula for centripetal acceleration.
Because r is given, we can use the second expression in the equation ac=v2r;ac=rω2 a c = v 2 r ; a c = r ω 2 to calculate the centripetal acceleration. Solution.
a soccer ball accelerates more than a bowling ball when thrown with the same force. which law of newton best supports this?
Answer:
Newtons second law of motion known as the law of acceleration
Explanation:
The second law explains that a greater mass requires a greater force
Two trains leave a station at the same time, Train A travels at a constant speed of 16 m/s. Train B starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. After 10.0 seconds, which train has the greater speed?
Answer:
Train B
Explanation:
train a is traveling at 16m/s no matter what time since it's a constant
to find final velocity of train B we use
v2=v1 +at
v1 = 8m/s
a = 1m/s squared
t = 10 s
v2 = 8 + 1(10)
v2 = 18
train B travelling at 18 m/s at 10 secs
the example of basic reserch
Answer:
A study looking at how alcohol consumption impacts the brain. A study to discover the components making up human DNA. A study accessing whether stress levels
Explanation:
For example, a scientist that tries to figure out how the body makes cholesterol, or what causes a particular disease, is performing basic scienc
If earth’s axis were tilted by 45°, instead of its actual tilt, how would the seasons be different than they are currently?.
Alice kicks a 0. 25 kg soccer ball with 0. 5 N of force. What force does the ball exert on Alice’s foot as she kicks it? N.
The force exerted on Alice’s foot as she kicks the ball is 1.25 N.Force can be defined as the influence that can accelerate the object.
What is force?
Force can be defined as the influence that can accelerate the object. From Newton's Second Law of motion,
[tex]F = ma[/tex]
Where,
[tex]F[/tex] - force
[tex]m[/tex] - mass = 0. 25 kg
[tex]a[/tex] - acceleration = 5 N
Put the values in the formula,
[tex]F = 0.25 \times 5\\\\F = 1.25 \rm \ N[/tex]
Therefore, the force exerted on Alice’s foot as she kicks the ball is 1.25 N.
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If a sound wave traveled from a solid to a liquid its speed would:.
Answer:
increase
Please Give Brainliest!
what is surface pressure?
Atmospheric pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa, which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.
Hope it helps...Surface pressure is the atmospheric pressure at a location of the Earth's surface (terrain and oceans).
A student is standing 8 m from a roaring truck engine that is measured at 20. The student moves 4 m closer to the engine. What is the measured sound intensity at the new distance?.
By knowing how intensity relates to distance, we will see that at 4 meters of the engine the intensity is 80.
How sound intensity relates to distance?
The sound spreads in a solid angle like all waves, so the intensity of the sound will decrease with the distance squared, this means that:
[tex]I = \frac{P}{4*pi*r^2}[/tex]
Where P is the sound power, we know that when the student is at 8m from the engine, the intensity measured is 20 (it does not tell the units) so we have:
[tex]20 = \frac{P}{4*3.14*(8m)^2} \\\\P = 20*4*3.14*(8m)^2 = 16,078.8 m^2[/tex]
Now, if you move 4 meters closer to the engine, your new position will be:
r = 4m
Then we have:
[tex]I = \frac{16,078.8 m^2}{4*3.14*(4m)^2} = 80[/tex]
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Answer:
80 is the answer! 100% CORRECT!
Explanation:
~Hope this helps! :)
joshua lifted a 100-newton (n) box by doing 120 joules (j) of work. how high did he lift the box? 0.83 meters 1.2 meters 20 meters 12,000 meters
He lifted the box as high as 1.2 m (B).
IntroductionHi ! In this question, I will help you. Work is the amount of force exerted to cause an object to move a certain distance from its starting point. In physics, the amount of work will be proportional to the increase in force and increase in displacement. Amount of work can be calculated by this equation :
[tex] \boxed{\sf{\bold{W = F \times s}}} [/tex]
With the following condition :
W = work (J)F = force (N)s = shift or displacement (m)Now, because in this question, the "s" is a displacement that proportion to the change of altitude of the objects. So, the "s" can be written as "∆h* (altitude change). The formula can also be changed to:
[tex] \boxed{\sf{\bold{W = F \times \Delta h}}} [/tex]
With the following condition :
W = work (J)F = force (N)[tex] \sf{\Delta h} [/tex] = change of altitude (m)Problem SolvingWe know that :
W = work = 120 JF = force = 100 NWhat was asked :
[tex] \sf{\Delta h} [/tex] = change of altitude = ... mStep by step :
[tex] \sf{W = F \times \Delta h} [/tex]
[tex] \sf{120 = 100 \times \Delta h} [/tex]
[tex] \sf{h = \frac{120}{100}} [/tex]
[tex] \boxed{\sf{h = 1.2 \: m}} [/tex]
Conclusion :He lifted the box as high as 1.2 m (B).
See More :Work that he had done to lift object https://brainly.com/question/26341717Converting work to potential energy https://brainly.com/question/26487284The height to which the box will be lift up by a force of 100N and work done of 120 Joules is 1.2 meters. Thus, the correct option is B.
What is Work done?The work done by a force of a particular magnitude is defined as the product of the force in the direction of the displacement of the object and the magnitude of this displacement. Work done can be calculated by multiplying Force and Distance in the direction of force as follows.
W = F × d
W = work (J),
F = force (N),
d = shift or displacement (m).
Here, d is a displacement that is proportional to the change of altitude of the objects. So, the d can be written as ∆h (altitude change or height change). The formula can also be written as:
W = f × Δh
where, W = work (J)
F = force (N)
Δh = change of altitude (m)
As given,
W = work = 120 J
F = force = 100 N
Δh = change of altitude
W = f × Δh
120 = 100 × Δh
Δh = 120/100
h = 1.2m
Therefore, the correct option is B.
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A man walked 50 m to the south, turned, walked 40 m to the west.
4. Which direction best describes his final position?
A. 649
B. 231°
C. 2929
D. 331°
Answer:
Direction is N 51.3° E
Explanation:
» From trigonometric ratios:
[tex]{ \tt{ \red{ \tan( \theta) = \frac{opposite \: { \blue{(south)}}}{adjacent \: { \blue{(west)}}} }}} \\ \\ { \tt{ \tan( \theta) = \frac{50}{40} = \frac{5}{4} }} \\ \\ { \tt{ \theta = { \tan }^{ - 1} ( \frac{5}{4}) }} \\ \\ { \tt{ \theta = 51.3 \degree}} \\ \\ { \boxed{ \tt{ \: direction : \:{ \green{N }}\: 51.3 \degree \: { \green{ E }}}}}[/tex]
Why does an object that is sliding across carpet slow down?.
Answer:
. Carpet has a rougher surface than the bare floor, so there are more areas for the object to have friction with the rougher surface and slow down.
Explanation:
An object that is sliding across carpet slow down because of friction acting between its rougher surface and the surface of the object.
What is friction?When two bodies come in touch with each other, friction, a sort of relative force, acts as a resistance. In other words, friction force opposes the relative motion of two bodies when they come into touch with one another.
When an object is sliding across carpet, it has to pass through a surface which is more rough compare to plane surface. So, frictional force will be greater in this case compare to plane surface. This frictional force resists the sliding of the object and the object slows down gradually.
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Which of the following does NOT travel in a vacuum?
w) radio waves
x) gamma rays
y) magnetic waves
z) sound waves
Answer:
Z -- SOUND WAVES
An object has an acceleration of 30.0 m/s/s. The mass of the object is tripled while the net force of the object is constant. What will the new acceleration be?
Answer:
Inertia.
Explanation:
Goodluck!!
Answer:
the mass is 6 kilos grams
The gravitational force of attraction between two masses is F
1. If both masses are tripled, what happens to the force?
2. If both masses are tripled, what happens to the force?
3. If masses are not changed, but the distance of separation is reduced to 2/3 the original distance, what happens to the force
4. If both masses are doubled and the distance of the separation is tripled, show what happens to the force
5. if one of the masses is doubled, the other remains unchanged, and the distance of separation is quadrupled, show what happens to the force.
6. What would be the value of Earth's gravitational field strength if Earth's mass was double its actual value, but its radius was reduced to one-third of its original value?
Hi there!
We can use the equation for gravitational force:
[tex]F_g = \frac{Gm_1m_2}{r^2}[/tex]
Fg = force due to gravity (N)
m1, m2 = masses of objects (kg)
r = distance between the center of mass of the objects (m)
G = gravitational constant
1.
Using the equation:
[tex]F'_g = \frac{G(3m_1)(3m_2)}{r^2} = 9F_g[/tex]
The force would be 9 times larger.
2. (Repeat?)
3.
The square of distance is inversely related, so:
[tex]F'g= \frac{Gm_1m_2}{(\frac{2}{3}r)^2} = \frac{Gm_1m_2}{\frac{4}{9}r^2} = \frac{9}{4}F_g[/tex]
The force is 9/4ths times larger.
4.
Combining:
[tex]F'_g = \frac{G(2m_1)(2m_2)}{(3r)^2} = \frac{4Gm_1m_2}{9r^2} = \frac{4}{9}F_g[/tex]
The force is 9/4ths times larger.
5.
[tex]F'g = \frac{G(2m_1)m_2}{(4r)^2} = \frac{2Gm_1m_2}{16r^2} = \frac{1}{8}F_g[/tex]
The force is 1/8th the original.
6.
Equation for gravitational field:
[tex]g = \frac{Gm_e}{r_e^2}[/tex]
g = acceleration due to gravity (m/s²)
G = gravitational constant
me = mass of earth (kg)
re = radius of earth (m)
With the following transformations:
[tex]g' = \frac{G(2m_e)}{(\frac{1}{3}r)^2} = \frac{2Gm_e}{\frac{1}{9}r^2} = 18g[/tex]
The acceleration due to gravity is 18 times as large.
Complete the following
answer is down hera
Two men pull on a 31-kg box with forces 8.3 N and 6.6 N in opposite directions.
Find the resultant acceleration of the box and the direction in which the box moves.
The resultant acceleration of the box is 0.055 m/s² in the direction of the greater force.
The given parameters:
Mass of the box, m = 31 kgTwo applied forces, = 8.3 N and 6.6 NResultant force on the boxThe resultant force on the box is calculated as follows;
[tex]F_{net} = F_1 - F_2\\\\F_{net} = 8.3 \ N - \ 6.6 \ N\\\\F_{net} = 1.7 \ N[/tex]
Resultant acceleration of the boxThe resultant acceleration of the box is calculated as follows;
[tex]F = ma\\\\a = \frac{F}{m} \\\\a = \frac{1.7}{31} \\\\a = 0.055 \ m/s^2[/tex]
Thus, the resultant acceleration of the box is 0.055 m/s² in the direction of the greater force.
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An object has an acceleration of 30.0 m/s/s. The mass of the object is tripled while the net force of the object is constant. What will the new acceleration be?
a. 30.0 m/s/s
b. 15.0 m/s/s
c. 10.0 m/s/s
d. 90.0 m/s/s
Known :
m1 = m
m2 = 3m1 = 3m
a1 = 30.0 m/s²
Solution :
Net force of the object is constant, so :
F1 = F2
m1 • a1 = m2 • a2
(m)(30.0 m/s²) = (3m)(a2)
a2 = 10 m/s²
Explain how to find the resultant vector using mathematical methods.
Explanation:
R = A + B. Vectors in the opposite direction are subtracted from each other to obtain the resultant vector. Here the vector B is opposite in direction to the vector A, and R is the resultant vector.
Do you think that it is possible to send a vocal transmission on a light wave?
Answer:
It is estimated that the light sources used as transmitters in the light-wave com munication system in Chicago have the ability to transmit more than 650 voice signals simultaneously.
Explanation:
Two objects are placed touching each other. Object A has a temperature of 1 T and Object B has a temperature of 2 T. What will be true after some time has passed
Both objects will have the same temperature, which is larger than T but smaller than 2*T
What is the thermodynamic equilibrium?A system in equilibrium if it is not able to experience spontaneous changes.
Here, we assume that our system is just the two objects with the given temperatures, and nothing else.
Thus, when we put them together, the only thing that will happen is a heat transfer (from the hotter object to the other one), until both of them have the same temperature (when both objects have the same temperature the heat flux stops).
Also, the object with temperature 2*T loses temperature, while the object with temperature T increases its temperature, then we can conclude that the final temperature of both objects will be in between these:
T < Tₓ < 2*T
To get the exact final temperature, we would need more information.
So what will be true after some time has passed?
The only thing that we know will happen is:
Both objects will have the same temperature, which is larger than T but smaller than 2*T
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Answer: Thermodynamics Unit Test
1. Heat will flow from Object B to Object A.
2. Heat flows due to a temperature difference between two objects.
3. 100 J/g
4. 9,887.5 J
5. Some heat is always lost to the environment.
6. Short Answer Question
Explanation:
100% correct
Susan works in the research and development department. She has recently purchased a large high-speed external drive and has attached the drive to her computer using a USB cable. Her drive requires a minimum bandwidth of 400 Mbps and at least 900 milliamps (mA) to function.
Although the correct drivers are installed, the drive is not functioning. To troubleshoot the problem, she has connected her drive to her coworkers' computer where the drive functions properly. No additional cables are required for this drive.
Which of the following is the MOST likely reason Susan's external hard drive is not working?
A. Susan has connected her drive to a USB 3.0 port, which does not have enough power for her drive.
B. Susan has connected her drive to a USB 2.0 port, which does not have enough power for her drive.
C. Susan has connected her drive to a USB 3.0 port, which does not support the maximum bandwidth required.
D. Susan has connected her drive to a USB 2.0 port, which does not support the maximum bandwidth required.
Susan has connected her drive to a USB 2.0 port, which does not support the maximum bandwidth required. The correct option is D.
Thus, The issue is probably related to the USB port's bandwidth because the disc works perfectly on her coworker's PC and the right drivers are loaded.
The drive requires a minimum bandwidth of 400 Mbps, and USB 2.0 ports often have less bandwidth than USB 3.0 ones.
As a result, using a USB 2.0 connector to connect the drive might not give it enough bandwidth to operate as intended.
Thus, Susan has connected her drive to a USB 2.0 port, which does not support the maximum bandwidth required. The correct option is D.
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The sun's rays have a greater effect on land temperature than they have on water temperature. This can be explained partly by which of the following?
(1) Some energy from the sun is used to evaporate ocean water.
(2) Less energy is reflected by the water's surface than by the land's surface.
(3) Land materials have a higher specific heat than water has.
(4) Land Materials require more heat energy than water does to raise their temperature 1 degree Celsius.
Answer:
The answer is choice (3)
Explanation: Land materials do require more energy than water to raise their temperature by one degree, hence why water gets heated a lot easier than something like wood.
Approximately how long does it take for the moon to go from new moon to full moon?.
Answer:
i think a month
Explanation:
What causes polarity in water molecules?
Answer: Unequal sharing of electrons makes water a polar molecule. ... This means that electrons spend a bit more time at the oxygen end of the molecule. This makes the oxygen end of the molecule slightly negative. Since the electrons are not near the hydrogen end as much, that end is slightly positive.
Explanation:
when the production of a good generates negative externalities, ________.
