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Science- A 25N object is 3 meters up. How much potential energy does it have? our teacher said that the formula for finding out potential energy is PE = Mass * Gravity * Height. The gravity on Earth is always

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  1. Science/Math/HElP

    Science- A 25N object is 3 meters up. How much potential energy does it have? our teacher said that the formula for finding out potential energy is PE = Mass * Gravity * Height. The gravity on Earth is always 9.8, but my problem is that instead of mass the

  2. physics

    A 20 kg object is acted on by a conservative force given by F = -3.0 x - 5.0 x 2, with F in newtons and x in meters. Take the potential energy associated with the force to be zero when the object is at x = 0. (a) What is the potential energy of the system

  3. science

    How much work does it take to raise a 3kg object 5m into the air? (a) What is the potential energy of the object when it is 5m in the air? (b) What does this tell you about the potential energy you get when you do work to lift an object? (c) If you drop

  5. Physics

    please check: Which of the following energy forms is associated with an object in motion? a. potential energy b. elastic potential energy c. nonmechanical energy d. kinetic energy i think its B Which of the following energy forms is associated with an

  6. science

    1. How much potential energy does a 5kg block have if it is 2m above the ground? 2. What is the mass of an object that has 40J of potential energy and is 10m above the ground? 3. What is the weight of an 8kg object? 4. How much work does it take to lift an

  7. Physics Please help !!

    A single conservative force = (6.0x - 12) N where x is in meters, acts on a particle moving along an x axis. The potential energy U associated with this force is assigned a value of 23 J at x = 0. (a) Write an expression for U as a function of x, with U in

  8. Science

    Which is a good description of kinetic energy? conserved energy stored energy energy from the sun energy of motion A person throws a ball up into the air. At which point in its path will the ball have the greatest potential energy? when the ball reaches

  10. Physics

    In a mechanical experiment with an isolated object, only Ekin and Epot of the object change. If the object accelerates from 5 m/s to 10 m/s, its potential energy has? My ans: Potential energy has decreased by a factor of 2 because kinetic energy has

  11. Physics

    Thank you so much for answering my questions thus far drwrls. One more,A force of 100 N, acting over a distance of 10 meters, increases the kinetic energy of a moving object by 500 J. This information is sufficient to conclude that the object accelerated,

  12. science Please Help

    1. A positively charged test object is moving toward the positive source charge in an electric field. What happens next??? A. its potential energy decreases. B. Its potential energy increases. C. Its potential energy stays the same. D. Its potential energy

  13. Physical science

    Imagine an object held at some height above the ground. It is released and falls toward the ground. Ignoring air resistance or friction, which of the following must be true? a Before it falls, all of its energy must be potential energy b At the end of its

  15. Physics

    A 250 g object attached to a spring oscillates on a frictionless horizontal table with the frequency of 4 Hz and an amplitude of 20 cm. Calculate a) maximum potential energy of the system b) the displacement of the object when the potential energy is

  16. science(2 QUESTIONS)

    PLEASE ANSWER MY 2 QUESTIONS IN SCIENCE THANKS 3.when a negatively charged object moves in the opposite direction of an electric force field,the potential energy of the object. A.becomes zero(I PICK THIS) B.increases C.decreases D.stays the same 4.the two

  17. science(2 Qs)

    PLEASE ANSWER MY 2 QUESTIONS IN SCIENCE THANKS 3.when a negatively charged object moves in the opposite direction of an electric force field,the potential energy of the object. A.becomes zero(I PICK THIS) B.increases C.decreases D.stays the same 4.the two

  18. physics

    two objects of equal mass are placed in a room. Object A is placed on the floor and object B is placed on a table top that is 3 meters of the ground. Which one has more potential energy and why?

  20. PHYSICS helppppp

    A 0.2 kilogram baseball is thrown vertically downwards towards to the same horizontal floor. The baseball possesses an initial velocity of 30 meters per second. The height is 10.00m. (A) Calculate the POTENTIAL GRAVITATIONAL ENERGY and KINETIC ENERGY of

  21. Physical Science

    Two objects were lifted by a machine. One object had a mas of 2 kilograms, and was lifted at a speed of 2 m/sec. The other had a mass of 4 kilogram was lifted at a rate of 3 m/sec. ------------------------------------------- a) Which object had more

  22. Science(Stuff to do like with magnets!)

    1. A positively charged test object is moving toward the positive source charge in an electric field. What happens next??? A. its potential energy decreases. B. Its potential energy increases. C. Its potential energy stays the same. D. Its potential energy

  23. Science (energy)

    1. What similarities do nuclear energy and chemical energy share? Choose all that apply. A. Both are types of kinetic energy. B. Both are types of potential energy. [CORRECT!] C. Both involve magnetic energy. D. Both involve stored energy. [CORRECT!] 2. A

  25. Science- Electric and Magnetic Potential Energy

    1. At which position will the bar magnets most likely experience the least magnetic potential energy between them? D - position 4 2. A positively charged test object is moving toward the positive source charge in an electric field. B - It's potential

  26. Physics

    Which object had more potential energy when it was lifted to a distance of 10 meters?

  27. science 8th grade

    1. The thermal energy of an object is _____. (1 point) its potential energy its average kinetic energy its potential energy minus its kinetic energy its kinetic energy plus its potential energy Thanks, jessica :)

  28. Physics ~Conservation of Energy~

    1.) At one point in its fall, an object (m=2.5 kg.) has a kinetic energy of 5 J(joule) and a potential energy of 10 J. a) what is the total energy of the system? b) what is the velocity at this point? The object continues to another point where its

  30. science(answer please)

    please answer these 1.what similarities do nuclear energy and chemical energy share?pick all that apply A.both are types of kinetic energy. B.both are types of potential energy C.both involve magnetic energy D.both involve stored energy 3.the energy an

  31. Physics

    I need help with b... I found that k=.750880 for part a but I can't figure out what y would be to get potential energy. A 52 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 0.8 * sin( 3.8 * t )

  32. Mia

    A Screamingly Good Science Lesson Elizabeth Kibler 1Amusement park rides give us thrills, exhilaration, and delight. If you pay attention, these rides can give you something else—a science lesson. Roller coasters are amazing rides that can twist and veer

  33. Physics

    As an object slides across a rough horizontal surface, what happens to the object's gravitional potential energy with respect to the surface and speed? Would't potential energy decrease at rest?

  35. physics

    What does it mean to say the Coulomb Force is a conservative force? This is what I have compiled, but I still feel like I'm missing something. A conservative force is one in which energy cannot be created nor destroyed, and with the property that the work

  36. Science

    A student is trying to identify the different forms of energy described in the following chart: Form of Energy Description Examples Energy A energy that travels in waves through space light radio waves Energy B energy that depends on the height of an

  37. physics(URGENT!!!!!)

    An object of mass m=80 kg moves in one dimension subject to the potential energy U(x)=λ4(x2−a2)2+b2x2.(1) Here we use λ= 1 kg/(m2s2), a= 7 m, and b= -11 kg/s2. (a) How many equilibrium points (stable and unstable ones) does this potential have? n=

  38. physics

    A single conservative force F = (6.0x - 11)i N, where x is in meters, acts on a particle moving along an x axis. The potential energy U associated with this force is assigned a value of 24 J at x = 0. (a) What is the maximum positive potential energy? At

  40. physics

    A single conservative force F = (7.0x - 11)i N, where x is in meters, acts on a particle moving along an x axis. The potential energy U associated with this force is assigned a value of 29 J at x = 0. (a) What is the maximum positive potential energy? At

  41. Math-Algebra

    1. The force (in Newtons) applied to an object varies jointly as its mass and acceleration. How much force is needed to accelerate a 25 kg object by 3 m/s^2? 2. The potential energy of an object varies jointly as its mass and height from the ground. If the

  42. Physics

    An object with a mass of 32 kg has an initial energy of 500 J. At the end of the experiment, the velocity of the object is recorded as 5.1 m/s. If the object travelled 50 m to get to this point, what was the average force of friction on object during the

  43. Physics

    An object with a mass of 5 kg is thrown with an initial velocity of 6 m/s. If the object has an initial height of 10 meters above the ground, what is the magnitude of the initial gravitational potential energy of the object? The acceleration due to gravity

  45. physics

    An object with a mass of 5 kg is thrown with an initial velocity of 6 m/s. If the object has an initial height of 10 meters above the ground, what is the magnitude of the initial gravitational potential energy of the object? The acceleration due to gravity

  46. IPC (different one)

    Select all that apply. A 0.200-kilogram ball sits on a shelf 2.00 meters from the floor and then falls to a point 1.00 meter from the floor. Ignoring any affects due to friction, at this position _____. 1) its mechanical energy is 3.92 J 2) its potential

  47. physics

    Under conditions of conservation of energy where the initial energy object is only gravitiational potential energy and the final energy is only kinetic, write an equation to calculate the final velocity of the object. Ignore all friction. Show all work

  48. Science

    Consider which is not an example of how an object gains elastic potential energy by stretching is a trampoline part In what form are all potential energy the same What is making an ice block to melt Describe three forms of energy Imagine that you push on a

  50. science

    1.what similarities do nuclear energy and chemical energy share?pick all that apply A.both are types of kinetic energy. B.both are types of potential energy C.both involve magnetic energy D.both involve stored energy (I PICK B AND D) 3.the energy an object

  51. ELA

    A Screamingly Good Science Lesson Elizabeth Kibler 1Amusement park rides give us thrills, exhilaration, and delight. If you pay attention, these rides can give you something else—a science lesson. Roller coasters are amazing rides that can twist and veer

  52. physics

    A 2.40 kg object is hanging from the end of a vertical spring. The spring constant is 53.0 N/m. The object is pulled 0.200 m downward and released from rest. Complete the table below by calculating the translational kinetic energy, the gravitational

  53. help on physics

    A 3.30 kg object is hanging from the end of a vertical spring. The spring constant is 48.0 N/m. The object is pulled 0.200 m downward and released from rest. Complete the table below by calculating the translational kinetic energy, the gravitational

  55. oscillation

    An object with mass 0.250 kg is acted on by an elastic restoring force with force constant 10.8 N/m. The object is set into oscillation with an initial potential energy of 0.150 J and an initial kinetic energy of 6.00×10−2 J. What is the amplitude of

  56. Physics

    An object with mass 0.250 kg is acted on by an elastic restoring force with force constant 10.8 N/m. The object is set into oscillation with an initial potential energy of 0.150 J and an initial kinetic energy of 6.00×10−2 J. What is the amplitude of

  57. Physics

    1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? 3. the gravitational potential energy of a bird of mass 2.0

  58. chemistry

    An electron is accelerated through an electric potential to a kinetic energy of 18.2 keV. What is its characteristic wavelength? (Hint: Recall that the kinetic energy of a moving object is E = 1/2 mv2 where m is the mass of the object and v is the speed of

  60. physics

    Explain each of the following questions. ( a) Can an object– Earth system have kinetic energy and not gravitational potential energy? ( b) Can it have gravitational potential energy and not kinetic energy? ( c) Can it have both types of energy at the

  61. college physics

    Explain each of the following questions. ( a) Can an object– Earth system have kinetic energy and not gravitational potential energy? ( b) Can it have gravitational potential energy and not kinetic energy? ( c) Can it have both types of energy at the

  62. Science

    Why is the gravitational potential energy of an object 1 meter above the moon's surface less than its potential energy 1 m above earth's surface is it c object's acceleration due to gravity is less on the moon

  63. physic

    In compressed state, a spring 3.00 meters long hanging from the ceiling has a potential energy of 2.0 joules. If the entire potential energy is used to release a ball of mass 1.2 kilograms vertically downward, then what is the kinetic energy of the ball

  65. Physics

    The electric potential energy of an object at point A is known to be 60 J. If it is released from rest at A, it gains 20 J of kinetic energy as it moves to point B. What is its potential energy at B?

  66. Physics

    When work is done to increase the potential energy of an object without increasing its kinetic energy, is the net force acting on the object greater than zero?Explain.

  67. Physics

    A metal ball is placed in a device with a spring that has been compressed past its equilibrium point so that when the spring is released, it will propel the ball into the air. The device is set up on a table one meter above the floor. Which components make

  68. Physics

    1-A car is lifted a certain distance in a service station and therefore has potential energy with respect to the floor. If it were lifted twice as high, how much potential energy would it have? Answer: twice as much 2-Two cars, one twice as heavy as the

  70. Physics -- check answers

    1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational

  71. Physics -- check answers please

    1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational

  72. science

    how can you determine whether an object has gravitational potential energy or elastic potential energy?

  73. sci i think its b

    A student is trying to identify the different forms of energy described in the following chart: Form of Energy Description Examples Energy A energy that travels in waves through space light radio waves Energy B energy that depends on the height of an

  75. Physics

    3) a) Calculate the unstretched length of a spring, which has a Hooke's constant of 40N/m and is 56cm long when supporting a stationary 800g object. I did mag = kx (0.800)(9.81) = 40x x = 0.20m l-x = u 56-20 = u u = 36cm Is that right? b) The period with

  76. Applied Physics

    A 10 kilogram object subjected to a 20 Newton force moves across a horizontal frictionless surface in the direction of the force. Before the force was applied, the speed of the object was 2.0 meters/second. When the force is removed the object is traveling

  77. Physics

    If an object has twice the electric potential of another object, does it also have twice the electrical potential energy? Why or why not?

  78. ! P H Y S I C S !

    A 5 kg mass is thrown down with a velocity of 10 m/s from a height of 20 m onto an upright spring with a relaxed length of 10 m, and a constant of 50 N/m. What will the maximum compression of the spring be? What will the speed of the object be when the

  80. Physics

    I need help with part b, c, and d please! A 45 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 1.4 * sin( 4 * t ) where y is measured in meters and t in seconds.

  81. Physics Help!!

    Suppose the kinetic energy of an object moving is 15 J and the potential energy is 25 J at some point in time. Then I measure the potential energy some time later and find it to be 10 J. What is the new kinetic energy?

  82. science

    The temperature of an object is directly related to A. the mass of the object. B. the motion of its particles. C. the potential energy of its chemical bonds. D. the volume of the object.

  83. Physics

    what forms of energy are involved in the following situations? (choices: kinetic energy, potential energy - gravitational potential energy, elastic potential energy) a. a bicycle coasting along a level road b. heating water c. throwing a football d.

  85. Science Question

    How can you post this under Science? The question is better asked in a grouping of adherents to magic, and fancy. Explain the nature and use of Vril energy. What are some of the potential dangers and drawbacks of the use of Vril energy in modern

  86. Science

    PLEASE CHECK MY ANSWERS------------------------------------------------- An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the law of conservation of energy. Which statement

  87. Physics

    A 2kg block is released from rest at position A and falls 12 meters to the floor. At position B, just before it lands, it is falling at 15m/s. a) if the blocks potential energy is zero at B, what is its potential energy at A?

  88. PHYSICS

    A box slides down a frictionless, 10-meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in

  90. Physical Science

    These are multiple-choice questions: 1.How much work is accomplished when a force of 300 N pushes a box across the floor for a distance of 100 M? A- 300 N B- 30,000 N C- 300 J D- 30,000 J I chose D 2.How do simple machines make work easier? A- They change

  91. Intermediate algebra

    The kinetic Energy (K)of a moving object varies jointly with it mass (m) and the square of it velocity (v) If an object has a mass of 22.5 kilograms and moving with a velocity of 20 meters per second has a kinetic energy of 4500 joules, find it kinetic

  92. Physics

    The stored potential energy in the trampoline at maximum compression, (1/2) k X^2, equals the gravitational potential energy at maximum height, M g H. (Kinetic energy is zero in both cases) X = 0.5 m g = 9.8 m/s^2 H = 2.5 m k = the spring constant. Solve

  93. physics Help please!

    h(m) KE (J) PEgravity (J) PEelastic (J) E 0 ______ _________ _________ __ 0.2 ______ _________ __________ ___ 0.4 ______ _________ __________ __ A 2.40-kg object is hanging from the end of a vertical spring. The spring constant is 31.0 N/m. The object is

  95. Algebra

    Please help me solve this problem the kinetic energy (k) energy of a moving object with varies jointy with it mass (m) and the squareo of its velocity (v). If an object has an mass of 22.5 kilograms and moving with a velocity of 20 meters per secomd has a

  96. Algebra

    The Kinetic energy (k)of a moving object varies jointly with it mass (m) and the square of its velocity (v).If an object has a mass of 22.5 kilograms and moving with a velocity of 20 meters per second has a kinetic energy of 4500 joules, find it kinetic

  97. physics

    An object of mass m attached to a spring of force constant k oscillates with simple harmonic motion. The maximum displacement from equilibrium is A and the total mechanical energy of the system is E. What is the object's velocity when its potential energy

  98. Science

    A mango on the tree possesses potential energy when falling down potential energy, the potential energy is converted to kinetic energy. what is the value of potential energy at the point of the mango hangs on there.

  100. physics

    2 energy questions to fill in the blank: 1) The path that an object follows as it is raised does not affect the _____ of the object. 2) The increase in potential energy of any system is equal to the output _____.

  101. physics

    1)The increase in potential energy of any system is equal to the output ___. I still have no idea. 2) The path that an object follows as it is raised does not affect the ___ of the object. Could it possibly be "final kinetic energy"?

  102. science

    A ball sitting on the top of a table has potential energy but no kinetic energy. How do potential and kinetic energy change as the ball falls off the table to the floor? A. Both its potential energy and its kinetic energy decrease. B. Both its potential

  103. science

    A ball sitting on the top of a table has potential energy but no kinetic energy. How do potential and kinetic energy change as the ball falls off the table to the floor? A. Its potential energy increases, and its kinetic energy decreases. B. Its potential

  105. Physics

    A 4.0 kg mass is moving along the x axis. The potential energy curve as a function of position is shown. The kinetic energy of the object at the origin is 12 J. The system is conservative. There is no friction. (a) What will be the kinetic energy at 2.0 m

  106. physic

    An object of mass 1.5 kg rests on a shelf where it has a gravitational potential energy of 7 joules. An object of mass 4.5 kg is placed on the same shelf. What is the gravitational potential energy of this second object?

  107. physics

    An object of mass 1.5 kg rests on a shelf where it has a gravitational potential energy of 7 joules. An object of mass 4.5 kg is placed on the same shelf. What is the gravitational potential energy of this second object?

  108. science

    An object of mass 1.5 kg rests on a shelf where it has a gravitational potential energy of 7 joules. An object of mass 4.5 kg is placed on the same shelf. What is the gravitational potential energy of this second object?

  110. physical science

    An object of mass 1.5 kg rests on a shelf where it has gravitational potential energy of 7 joules. An object of mass 4.5 kg is placed on the same shelf. What is the gravitational potential energy of second object

  111. Math

    1. The formula E-1/2mv^2 is often used in science where E is the kinetic energy of the object, m is the mass of the object and v is the seed of the object. Which equation finds m given E and v? A. m=2E+v2 B. m=E2v2 C. m=E2v2 D. m=2Ev

  112. physics

    In compressed state, a spring 3.00 meters long hanging from the ceiling has a potential energy of 2.0 joules. If the entire potential energy is used to release a ball of mass 1.2 kilograms vertically downward, then what is the kinetic energy of the ball

  113. chem please help drbob222

    If the internal energy of an object remains constant, which of the following statements is true regarding the object's potential energy? A. It remains the same when the object's velocity increases. B. It decreases when the object's velocity increases. C.

  115. science

    Object A has a gravitational potential energy of 24 joules when it rests on a shelf 5 m above the ground. Object B has a mass that is three times the mass of Object A. What would be the gravitational potential energy of object B when it rests on a shelf 10

  116. science

    Object A has a gravitational potential energy of 24 joules when it rests on a shelf 5 m above the ground. Object B has a mass that is three times the mass of Object A. What would be the gravitational potential energy of object B when it rests on a shelf 10

  117. PHYSICS (HELP!!!)

    An object of mass m=80 kg moves in one dimension subject to the potential energy U(x)=λ4(x2−a2)2+b2x2.(1) Here we use λ= 9 kg/(m2s2), a= 9 m, and b= 719 kg/s2. (a) How many equilibrium points (stable and unstable ones) does this potential have? n= 1 2

  118. physics

    please check my answers what are the SI units for momentum? kg*m/s which of the following is not involved in hitting a tennis ball? a. kinetic energy b. chemical potential energy c. gravitational potential energy d. elastic potential energy i picked B How

  120. Science

    Wil kinetic energy increase or decrease based on the amount of potential energy it starts with?? If potential energy is lost, KEnergy increases. Potential Energy + kinetic energy= constant.

  121. Physics

    An object of mass m orbits a star with mass M , where M >> m . In general the bound or bits are elliptical, which means the kinetic energy of the object T and the gravitational potential energy U may vary. For bound orbits, the total energy E is negative.

  122. physics

    The position of a 0.43 kg object attached to a spring is described by [x = (0.49 m) cos(1.25πt)] a) What is the amplitude of oscillations in m? b) What is in meters/second the maximum speed of the oscillating object? Answer in meters/seconds . c) Find in

  123. physics

    The position of a 0.31 kg object attached to a spring is described by [x = (0.85 m) sin(2.37πt + 0.35)] a) What is the amplitude of oscillations in m? b) What is in meters/second the maximum speed of the oscillating object? Answer in meters/seconds . c)

  125. Intermediate Algebra

    The kinetic Energy (K0 of a moving object varies jointly with its mass (m) and the square of its velocity (v). If an object has a mass of 22.5 kilograms and moving with a velocity of 20 meters per second has a kinetic energy of 4500 Joules, find its

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