Answer:
37.8225 J
Explanation:
kinetic energy = 1/2 of mass x [tex]velocity^{2}[/tex]
a cart starts with 300 j of pe when at 10m what is the mass of the object
Explanation:
Mass=volume ×density
10×300=3000m/j
What is the term that is used to describe the
material through which a wave travels?
a. Matter
b. Medium
C. Substance
d. None of the above
B. A wave travels through medium. Hope this helped!
All waves must travel up and down.
True
False
Answer:
True all waves that go up must come down
I feel like the follow the rule of gravity:everything that goes up must come d5
The wavelength of a wave on a string is 1. 2 meters. If the speed of the wave is 60 meters/second, what is its frequency? A. 0. 20 hertz B. 2. 0 hertz C. 50 hertz D. 10 hertz E. 15 hertz.
Answer:
c
Explanation:
What type of material is thought to explain the larger size of the outer planets relative to the inner planets
The material which is believed to explain the larger size of the outer planet in relation to the inner planet is gas while the inner is made of rock
Research on the solar system reveal to us that it is temperature of the the solar system that perfectly explain the materials both the outer and inner planets are made up of. The outer part is highly gaseous while the inner part is made of rocks
What is outer planet?It refers to planet whose orbit lies outside the asteroid belt. Examples include Jupiter, Saturn, Uranus, or Neptune.
What is inner planet?This simply means a planet whose orbit lies within the asteroid belt. They are planets such as Mercury, Venus, Earth, or Mars.
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Examine the image shown here. Bike helmets like this one have padding made of foam under the hard exterior of the plastic. The foam is what is in contact with the head of the wearer. These are safer in an accident than a non-foam padded helmet for which reason? A) The foam increases the inertia. B) The foam increases the momentum. C) The foam increases the time of impact. D) The foam decreases the time of impact.
The foam decreases the time of impact.
What is Impulse?The Impulse applied to an object causes a change in the momentum of the object. Impulse is the product of force and time of impact.
J = Ft
where;
J is the impulseF is the applied forcet is the time of impactThe increase in the time of impact increases the impulse experienced by the object, and a decrease in the time of impact causes a decrease in the impulse experienced by the object.
Thus, we can conclude that the foam decreases the time of impact because it cushions the effect of impact.
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Charge q1 = +2.00 μC is at -0.500 m along the x axis. Charge q2 = -2.00 μC is at 0.500 m along the x axis. Charge q3 = 2.00 μC is at 0.500 m along the y axis. What is the magnitude of electrical force on charge q3 due to the others?
The magnitude of electrical force on charge [tex]q_{3}[/tex] due to the others is 0.102 newtons.
How to calculate the electrical force experimented on a particle
The vector position of each particle respect to origin are described below:
[tex]\vec r_{1} = (-0.500, 0)\,[m][/tex]
[tex]\vec r_{2} = (+0.500, 0)\,[m][/tex]
[tex]\vec r_{3} = (0, +0.500)\,[m][/tex]
Then, distances of the former two particles particles respect to the latter one are found now:
[tex]\vec r_{13} = (+0.500, +0.500)\,[m][/tex]
[tex]r_{13} = \sqrt{\vec r_{13}\,\bullet\,\vec r_{13}} = \sqrt{(0.500\,m)^{2}+(0.500\,m)^{2}}[/tex]
[tex]r_{13} =\frac{\sqrt{2}}{2}\,m[/tex]
[tex]\vec r_{23} = (-0.500, +0.500)\,[m][/tex]
[tex]r_{23} = \sqrt{\vec r_{23}\,\bullet \,\vec r_{23}} = \sqrt{(-0.500\,m)^{2}+(0.500\,m)^{2}}[/tex]
[tex]r_{23} =\frac{\sqrt{2}}{2}\,m[/tex]
The resultant force is found by Coulomb's law and principle of superposition:
[tex]\vec R = \vec F_{13}+\vec F_{23}[/tex] (1)
Please notice that particles with charges of same sign attract each other and particles with charges of opposite sign repeal each other.
[tex]\vec R = \frac{k\cdot q_{1}\cdot q_{3}}{r_{13}^{2}}\cdot \vec u_{13} +\frac{k\cdot q_{2}\cdot q_{3}}{r_{23}^{2}}\cdot \vec u_{23}[/tex] (2)
Where:
[tex]k[/tex] - Electrostatic constant, in newton-square meters per square Coulomb.[tex]q_{1}[/tex], [tex]q_{2}[/tex], [tex]q_{3}[/tex] - Electric charges, in Coulombs.[tex]r_{13}[/tex], [tex]r_{23}[/tex] - Distances between particles, in meters.[tex]\vec u_{13}[/tex], [tex]\vec u_{23}[/tex] - Unit vectors, no unit.If we know that [tex]k = 8.988\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}}[/tex], [tex]q_{1} = 2\times 10^{-6}\,C[/tex], [tex]q_{2} = 2\times 10^{-6}\,C[/tex], [tex]q_{3} = 2\times 10^{-6}\,C[/tex], [tex]r_{13} =\frac{\sqrt{2}}{2}\,m[/tex], [tex]r_{23} =\frac{\sqrt{2}}{2}\,m[/tex], [tex]\vec u_{13} = \left(-\frac{\sqrt{2}}{2}, - \frac{\sqrt{2}}{2} \right)[/tex] and [tex]\vec u_{23} = \left(\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2} \right)[/tex], then the vector force on charge [tex]q_{3}[/tex] is:
[tex]\vec R = \frac{\left(8.988\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}} \right)\cdot (2\times 10^{-6}\,C)\cdot (2\times 10^{-6}\,C)}{\left(\frac{\sqrt{2}}{2}\,m \right)^{2}} \cdot \left(-\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2} \right) + \frac{\left(8.988\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}} \right)\cdot (2\times 10^{-6}\,C)\cdot (2\times 10^{-6}\,C)}{\left(\frac{\sqrt{2}}{2}\,m \right)^{2}} \cdot \left(\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2} \right)[/tex]
[tex]\vec R = 0.072\cdot \left(-\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2} \right) + 0.072\cdot \left(\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2} \right)\,[N][/tex]
[tex]\vec R = 0.072\cdot \left(0, -\sqrt{2}\right)\,[N][/tex]
And the magnitude of the electrical force on charge [tex]q_{3}[/tex] ([tex]R[/tex]), in newtons, due to the others is found by Pythagorean theorem:
[tex]R = 0.102\,N[/tex]
The magnitude of electrical force on charge [tex]q_{3}[/tex] due to the others is 0.102 newtons. [tex]\blacksquare[/tex]
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The atomic number is equivalent to an atom's
Answer:
Amount of Protons
Explanation:
If this is what you are asking for, the atomic number is equal to the amount of protons, while the atomic mass is equal to the amount of protons *plus* neutrons.
The large piston in a hydraulic lift has a radius of 250 cm^2. What force must be applied to the small piston in order to raise a car with a mass of 1500 kg?
Based on the data provided, the force that must be applied at the small piston is f = 1500 × 9.81 × 250/A.
What is the Pascal principle?Pascal's principle states that the pressure applied to an enclosedfluid is transmitted undiminished tp every portion of the fluid.
Mathematically:
f/a= F/A
where
f is the force applied to the small pistona is the area of the small pistonF is the force at the large pistonA is the area of the large pistonTherefore:
f = Fa/A
Since the area of the large piston is not given
f = 1500 × 9.81 × 250/A
Therefore, the force that must be applied at the small piston is f = 1500 × 9.81 × 250/A.
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somebody help me please
Hope you could understand.
If you have any query, feel free to ask.
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 ball exerts a force of 5 N on Alice's foot because every action has an equal and opposite reaction.
What does Newton's third law of motion state?
The third law of motion states that every action has an equal and opposite reaction. Force is the influence that can accelerate the object.
In the question, Alice kicks the ball with a force of 5 N, so, the ball will also exert an equal force but in opposite direction.
Therefore, the ball exerts a force of 5 N on Alice's foot.
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Part of the electromagnetic spectrum is visible light. Which color is at the opposite end from red on the visible spectrum?.
Answer:
violet
Explanation:fart
A particular engine takes in 10,000 J of heat, does 2,000 J of work, and as it runs discharges heat. Its own energy is the same when it
has finished as when it started. How much heat did it discharge if this is a closed system?
10,000 J
12,000 J
2,000 J
8,000 J
Answer:
8000 J
Explanation:
There is a Quizlet made by a teacher with this answer.
Will oil or vinegar flow faster?
Answer:
Vinegar
...................
A speeding train slams on the brakes when it sees a car is on the tracks in front of it. It takes the train 25 seconds for it to go from an initial speed of 75 m/s to come to a complete stop. What is the train’s acceleration?
Explanation:
Given:
Initial Velocity is 75 m/s
Fianl Velocity: 0 m/s
Time 25 seconds.
Acclereation?
Use kinematic equation,
[tex]v _{f} = v _{i} + at[/tex]
[tex]0 = 75 \frac{m}{s} + a(3s)[/tex]
[tex]{ - 75} \frac{m}{s} = 3s(a)[/tex]
[tex] - {25} \frac{m}{ {s}^{2} } = a[/tex]
So the acclereation is -25 m/s^2. Since the Velocity is positive and acclereation is negative, the train will be slowing down.
you have an open tube that is 1.7m long what is the fundemental frequency and wavelength of the tube
A 400 kg moving object has a kinetic energy of 15,000 J. What is the speed of the object?
A) 5.6
B) 8.7
C) 7.9
Help pls quick!!
Which statement about the force of an electromagnet's magnetic field is correct?
A. Increasing the number of coils increases the force, and increasing the amount of charge decreases the
force.
B. Increasing the speed of the charge increases the force, and increasing the length of the wire decreases the
force.
C. Increasing the amount of charge and decreasing the speed of the charge both increase the force.
D. Increasing the amount of charge and increasing the length of the wire both increase the force.
Pls help quick whoever gets it correct I will mark brainliest (:
Answer:
C
Explanation:
I hade the same assignment and the answer was C
Increasing the amount of charge and decreasing the speed of the charge both increase the force.
What is magnetic field?A magnetic field is a vector field that describe the magnetic influence on any object.The object moving in a magnetic field observes the force perpendicular to the it's own motion.How magnetic force effects the charges?The magnetic field generates magnetic force.This force depends on the amount charges on which it is applying and the speed of that charges.As we increases the amount the charge , the magnetic field now has more charges to interact with so the magnetic force will increase.As we decreases the speed of the charges than there is more time for magnetic field to interact with the charges.Hence , increasing the amount of charge and decreasing the speed of the charge both will increase the force.
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If an object has a force of 500N and the mass is 100Kg, what would the acceleration be for this
object?
- 600 m/sec
- 400 m/sec
- 50,000 m/sec
- 5 m/sec
Chose one
Answer:
5m/sec square
Explanation:
because F=M×A
A=F/M
.............................
Answer:
5m/sec square
Explanation:
because force = mass x acceleration
A=F/M
Consider an object released from rest such that it falls freely towards the ground. What would be the graphical relationship between the speed of the object as a function of time
Given what we know, we can confirm that the graph for the speed of the object should reflect an increasing speed over time relationship.
How do we know this?This has to do with how speed is calculated during a fall. Speed increases with acceleration. In the case of a free fall, the object will accelerate at roughly [tex]9.8 m/s^{2}[/tex] which is the acceleration caused by gravity. The graph should reflect these values.
Therefore, we can confirm that the graph should depict an increasing value for speed in relationship to the time that has elapsed, and the curve should indicate an acceleration of [tex]9.8 m/s^{2}[/tex].
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The Ejection Seat at Lake Biwa Amusement Park in Japan (Figure 1) is an inverse bungee system. A seat with passengers of a total mass of 160 kg is connected to elastic cables on the sides. The seat is pulled down 12.0 m, stretching the cables. When released, the stretched cables launch the passengers upward above the towers to a height of about 30.0 m above their starting position at the ground. Assume that the cables are vertical.
Determine the spring constant of the cable.
This question involves the concept of the law of conservation of energy.
The spring constant of the cable is "915.6 N/m".
LAW OF CONSERVATION OF ENERGY:According to the law of conservation of energy, energy can neither be created nor be destroyed. It can only change from one form to another form. In this scenario, the elastic potential energy stored by the cable will completely be transformed into the gravitational potential energy at the highest point.
[tex]Loss\ of\ Elastic\ Potential\ Energy=Gain\ in\ Gravitational\ Potential\ Energy[/tex]
[tex]\frac{1}{2}kx^2=mgh\\\\k= \frac{2mgh}{x^2}[/tex]
where,
k = spring constant = ?m = mass = 160 kgg = acceleration due to gravity = 9.81 m/s²h = total height covered after launch = 12 m + 30 m = 42 mx = stretched length = 12 mTherefore,
[tex]k=\frac{2(160\ kg)(9.81\ m/s^2)(42\ m)}{(12\ m)^2}[/tex]
k = 915.6 N/m
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The force of fraction between a 10kg mass and a leveled ground is found to be 6N.what applied force is required to accelerate the mass at 1.2 meter per second square?
The net force acting on the mass parallel to the surface is
∑ F[horizontal] = F[applied] - F[friction] = ma
where m = 10 kg. Given that F[friction] = 6 N and a = 1.2 m/s², we have
F[applied] - 6 N = (10 kg) (1.2 m/s²)
F[applied] = 12 N + 6 N
F[applied] = 18 N
distance traveled divided by average speed is the formula for what
Answer:
Time
Explanation:
As
Speed = distaance / time
S = d/t
t = d/s
A race car accelerates at a constant rate from 20 m/s to 60 m/s in a time of 2 seconds. What is the car’s acceleration?
[tex]\huge\fbox{Answer ☘}[/tex]
Given ,
initial velocity , u = 20 m/s
final velocity , v = 60 m/s
time taken = 2 seconds
Now ,
[tex]\bold{acceleration = \frac{v - u}{t} } \\ \\ = > \bold{ \frac{60 - 20}{2} } \\ \\ = > \bold{\frac{40}{2} } \\ \\ \bold{ => 20 \: ms {}^{ - 2}}[/tex]
hope helpful~
I am giving out the answers to the 2.01 Waves quiz
1. The disturbance that occurs as longitudinal waves travel through a medium can be described as a series of: oscillations and refractions
2. We can determine the velocity of a wave when given the frequency and the____: wavelength
3. As a wave moves through a medium, particles are displaced and__: return to their normal position after the wave passes
4. To determine the amplitude of a wave, you would need to know the: the distance from the crest of one wave to the crest of the next wave
5. To determine a waves' frequency, you must know the: number of oscillations in a given period of time
6. In order to determine the wavelength, you must know the distance from the: the crest of one wave to the crest of the next wave
7. As a transverse wave travels through a medium, it displaces the particles: perpendicular to the motion of the wave
8. As a longitudinal wave travels through a medium, it displaces the particles: parallel to the direction which the wave travels
9. One property that makes electromagnetic waves differ from other types of waves is that they can: travel in a vacuum
10. If asked to describe a wave, you could say waves are the: continuous transmission of energy from one location to the next
Answer:
This Is Very Helpful for people doing this lesson! :)
Explanation:
But. . . "The Ask a Question" Section Is For asking a question it's not really for giving out Answers.
Altitude refers to ________________. Group of answer choices the angular distance from the celestial equator the angular height of Polaris above or below the horizon the number of meters you're standing at from sea level the angular height away from the horizon
In Science, altitude refers to: D. the angular height away from the horizon.
What is altitude?Altitude is also referred to as an elevation and it can be defined as the vertical distance (height) above a natural satellite or the surface of a planet such as land or sea level.
This ultimately implies that, an altitude is vertical height (elevation) of an object or physical body above a particular location or planetary reference plane such as land or sea level on Earth.
In conclusion, altitude is the angular height of an object or physical body away from the horizon.
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Determine the value of the information in scientific notation. The moon is approximately 3. 63 × 108 meters from Earth. What is 3. 63 × 108 in standard notation?.
Answer:
d
Explanation:
Answer:
363,000,000
Explanation:
Got it right on the assignment EDGE 2022.
An 818 kg drag race car accelerates from rest to 109 km/h in 0. 926 s. What change in momentum does the force produce? answer in units of kg · m/s.
Answer:109km/h = 30.28
let change in momentum be cip
cip = m ( vf - vi )
cip= 818 ( 30.28 - 0)
cip = 24769.04 kg . m/s
Explanation:
Which force will return the fishing pole to its natural shape? (when bended)
balanced forces
tension
net force
compression
Explanation:
tension because compression,net force and balanced force cannot bend it back
Fill in the blanks. Beats only occur when the frequency of two objects is _________________ and when those objects are made to _________________ together.
