Energy Physics Work and Energy Energy Key Questions Question #de9c1 The SI unit of energy is joule (J) . It is also the unit for work and amount of heat. In terms of fundamental units, it can be expressed as: #J=(kg*m^2)/s^2# Questions How do matter and energy interact? Question #50ca2 Question #242cf Question #5038d Question #50391 What is potential energy? Question #d6576 Question #50cae Question #50cb2 Question #50cb6 What is the relation between machine and energy? What are three types of energy? What is the work energy theorem? Why is energy required for the boiling process? Question #5a91f Question #7b905 Question #edf16 What is the relationship between matter and energy? What is an example of an energy transformation from electrical to sound energy? How does energy relate to waves? How does energy relate to power? How does energy differ from force? Question #b36c5 What is the kinetic energy in kilojoules of a 2360 lb (1070 kg) car moving at 63.3 mi/h (28.3 m/s)? Question #1a490 What are the energy transformations that occur as you coast down a long hill on a bicycle and apply the brakes? What are the energy transformations that occur as you coast down a long hill on a bicycle and apply the brakes? What is the kinetic energy of an object with a mass of #6.25xx10^4# #"g"# having a speed of #"26.3 m/s"#? Why is energy not completely recycled? Why is energy conversion important? What is the relationship between energy and temperature? What is the relationship between energy and force? How does energy differ from matter? How does energy change forms? How is energy conserved in an endothermic reaction? How does energy change with a swinging pendulum? How does energy relate to wavelength in the electromagnetic spectrum? What energy is produced by the movement of electrons? What energy transformation occurs in a galvanometer? What energy transformations takes place in a motor? What energy conversion takes place during photosynthesis? What energy conversion takes place as an arrow is shot from a bow? What energy conversion occurs in a wind turbine? What energy conversions take place in a pendulum? Question #83c7e Question #4444b A train of weight, 3.7x106 N is moving at a speed of 40.8 m/s. Determine its Kinetic energy ? Why is #E=mc^2# important, and what does it tell us? Question #96843 Question #126a1 At what height is an object that has a mass of 500 N, if its gravitational potential energy is 9800 Joules? A model rocket with a mass of 2.7kg is launched straight up from the ground at a speed of 110m/s. What is the rocket's mechanical energy when it takes off? A model rocket with a mass of 2.7kg is launched straight up from the ground at a speed of 110m/s. What is its mechanical energy at the maximum height? Question #34b47 You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. How much energy does the ball have? A spring with a force constant of 5.2 N/m has a relaxed length of 2.45 m. When a mass is attached to the end of the spring and allowed to come rest, the vertical length of the spring is 3.57 m. What is the elastic potential energy stored in the spring? How do you calculate the potential energy of a .1 kg bird sitting on a tree limb 5 meters off the ground? If we know the total energy in a system is 30 J, and we know the PE is 20 J, what is the KE? The largest asteroid, Ceres, in our solar system's asteroid belt has an estimated mass of #3 * 10^21# kg and an orbital speed of #17900# #m##/##s#. What is the asteroid's kinetic energy? The figure shows three forces applied to a trunk that moves leftward by 3.34 m over a frictionless floor. The force magnitudes are F1 = 5.39 N, F2 = 8.74 N, and F3 = 2.52 N, and the indicated angle is Î¸ = 60Â°. ? What is the potential energy of a 2.5 kg book held 2.0 m above the ground? What is the kinetic energy of a 15 g snowball moving through the air at 3.5 m/s? What is the kinetic energy in joules of a 0.02 kg bullet traveling 300 m/s? What is the gravitational potential energy of a 93.0 kg sky diver who 550 m above the ground? What happens to mass at speeds near that of light? What is the gravitational potential energy of a # 10 kg# object on a shelf # 14 m # high? What is the gravitational potential energy of a # 12 kg# object on a shelf # 3 m # high? What is the gravitational potential energy of a # 21 kg# object on a shelf # 5 m # high? What is the gravitational potential energy of a # 1 kg# object on a shelf # 5 m # high? What is the gravitational potential energy of a # 16 kg# object on a shelf # 5 m # high? What is the gravitational potential energy of a # 35 kg# object on a shelf # 5/3 m # high? What is the gravitational potential energy of a # 62 kg# object on a shelf # 5/3 m # high? What is the gravitational potential energy of a # 2 kg# object on a shelf # 3/2 m # high? What is the gravitational potential energy of a # 2 kg# object on a shelf # 1/2 m # high? What is the gravitational potential energy of a # 7 kg# object on a shelf # 1/2 m # high? What is the gravitational potential energy of a # 7 kg# object on a shelf # 2/5 m # high? What is the gravitational potential energy of a # 4 kg# object on a shelf # 2/5 m # high? What is the gravitational potential energy of a # 4 kg# object on a shelf # 3/5 m # high? What is the gravitational potential energy of a # 9 kg# object on a shelf # 3/5 m # high? What is the gravitational potential energy of a # 15 kg# object on a shelf # 6/5 m # high? What is the gravitational potential energy of a # 11 kg# object on a shelf # 6/5 m # high? What is the gravitational potential energy of a # 11 kg# object on a shelf # 1/8 m # high? What is the gravitational potential energy of a # 1 kg# object on a shelf # 1/8 m # high? What is the gravitational potential energy of a # 1 kg# object on a shelf # 3/8 m # high? What is the gravitational potential energy of a # 8 kg# object on a shelf # 3/8 m # high? What is the gravitational potential energy of a # 12 kg# object on a shelf # 5/8 m # high? What is the gravitational potential energy of a # 12 kg# object on a shelf # 7/8 m # high? What is the gravitational potential energy of a # 36 kg# object on a shelf # 7/8 m # high? What is the gravitational potential energy of a # 6 kg# object on a shelf # 5/3 m # high? What is the gravitational potential energy of a # 6 kg# object on a shelf # 7/3 m # high? What is the gravitational potential energy of a # 9 kg# object on a shelf # 2/3 m # high? What is the gravitational potential energy of a # 9 kg# object on a shelf # 7/4 m # high? What is the gravitational potential energy of a # 49 kg# object on a shelf # 7/4 m # high? What is the gravitational potential energy of a # 4 kg# object on a shelf # 3/4 m # high? What is the gravitational potential energy of a # 7 kg# object on a shelf # 3/4 m # high? What is the gravitational potential energy of a # 22 kg# object on a shelf # 3/4 m # high? What is the gravitational potential energy of a # 2 kg# object on a shelf # 1/4 m # high? What is the gravitational potential energy of a # 13 kg# object on a shelf # 15/4 m # high? What is the gravitational potential energy of a # 1 kg# object on a shelf # 2/9 m # high? What is the gravitational potential energy of a # 5 kg# object on a shelf # 4/9 m # high? What is the gravitational potential energy of a # 18 kg# object on a shelf # 7/9 m # high? What is the gravitational potential energy of a # 9 kg# object on a shelf # 8/9 m # high? What is the gravitational potential energy of a # 9 kg# object on a shelf # 4 m # high? What is the gravitational potential energy of a # 29 kg# object on a shelf # 4 m # high? What is the gravitational potential energy of a # 29 kg# object on a shelf # 3 m # high? What is the gravitational potential energy of a # 29 kg# object on a shelf # 5/6 m # high? What is the gravitational potential energy of a # 9 kg# object on a shelf # 5/6 m # high? What is the gravitational potential energy of a # 7 kg# object on a shelf # 5/6 m # high? What is the gravitational potential energy of a # 14 kg# object on a shelf # 5/6 m # high? What is the kinetic energy of a #15 kg# object moving at #3 m/s#? What is the kinetic energy of a #15 kg# object moving at #7 m/s#? What is the kinetic energy of a #8 kg# object moving at #5/2 m/s#? What is the kinetic energy of a #8 kg# object moving at #5/4 m/s#? What is the kinetic energy of a #9 kg# object moving at #5/4 m/s#? What is the kinetic energy of a #9 kg# object moving at #7/4 m/s#? What is the kinetic energy of a #16 kg# object moving at #7/4 m/s#? What is the kinetic energy of a #16 kg# object moving at #4 m/s#? What is the kinetic energy of a #16 kg# object moving at #4/3 m/s#? What is the kinetic energy of a #6 kg# object moving at #4/3 m/s#? If an object with a mass of #7 kg # changes speed from #3 m/s# to #8m/s#, by how much did its kinetic energy change by? If an object with a mass of #12 kg # changes speed from #3 m/s# to #1m/s#, by how much does its kinetic energy change? If an object with a mass of #12 kg # changes speed from #3 m/s# to #2 m/s#, by how much does its kinetic energy change? If an object with a mass of #12 kg # changes speed from #1 m/s# to #2 m/s#, by how much does its kinetic energy change? If an object with a mass of #12 kg # changes speed from #9 m/s# to #10 m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #9 m/s# to #12 m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #6 m/s# to #2 m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #6 m/s# to #5 m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #3 m/s# to #5 m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #3 m/s# to # m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #3 m/s# to # 4m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #2 m/s# to # 4m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #2 m/s# to # 5m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #14 m/s# to # 15m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #2m/s# to # 7m/s#, by how much does its kinetic energy change? If an object with a mass of #5 kg # changes speed from #4m/s# to # 7m/s#, by how much does its kinetic energy change? If an object with a mass of #7 kg # changes speed from #4ms^-1# to # 5 ms^-1#, by how much does its kinetic energy change? If an object with a mass of # 3kg # changes speed from #4m/s# to # 9m/s#, by how much does its kinetic energy change? If an object with a mass of # 3kg # changes speed from #5m/s# to # 9m/s#, by how much does its kinetic energy change? If an object with a mass of # 3kg # changes speed from #5m/s# to # 1m/s#, by how much does its kinetic energy change? If an object with a mass of # 3kg # changes speed from #5m/s# to # 3m/s#, by how much does its kinetic energy change? If an object with a mass of # 3kg # changes speed from #5m/s# to # 6m/s#, by how much does its kinetic energy change? If an object with a mass of #5 kg # changes speed from #5m/s# to # 7m/s#, by how much does its kinetic energy change? If an object with a mass of #5 kg # changes speed from #12m/s# to # 8m/s#, by how much does its kinetic energy change? If an object with a mass of #5 kg # changes speed from #12m/s# to # 14m/s#, by how much does its kinetic energy change? If an object with a mass of #5 kg # changes speed from #3m/s# to # 14m/s#, by how much does its kinetic energy change? If an object with a mass of #5 kg # changes speed from #3m/s# to #16 m/s#, by how much does its kinetic energy change? If an object with a mass of #5 kg # changes speed from #5m/s# to #16 m/s#, by how much does its kinetic energy change? If an object with a mass of #5 kg # changes speed from #5m/s# to #13 m/s#, by how much does its kinetic energy change? If an object with a mass of #5 kg # changes speed from #5m/s# to #10 m/s#, by how much does its kinetic energy change? If an object with a mass of #15 kg # changes speed from #25m/s# to #14 m/s#, by how much does its kinetic energy change? If an object with a mass of #15 kg # changes speed from #8 m/s# to #14 m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #9m/s# to #4 m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #19m/s# to #20 m/s#, by how much does its kinetic energy change? If an object with a mass of #2 kg # changes speed from #6 m/s# to #13 m/s#, by how much does its kinetic energy change? What is the potential energy of an object with a mass of #"3 kg"# at a height of #"10 m"#? I am doing catapult as my final project. I need help with this que: State the method used to store the potential energy and why you chose this method? Please help me What is the kinetic energy of an object with a mass of #1 kg# that has been in freefall for #1 s#? What is the kinetic energy of an object with a mass of #1 kg# that has been in freefall for #2 s#? What is the kinetic energy of an object with a mass of #1 kg# that has been in freefall for #4 s#? What is the kinetic energy of an object with a mass of #2 kg# that has been in freefall for #4 s#? What is the kinetic energy of an object with a mass of #2 kg# that has been in freefall for #5 s#? What is the kinetic energy of an object with a mass of #2 kg# that has been in freefall for #7 s#? What is the kinetic energy of an object with a mass of #3 kg# that has been in freefall for #4 s#? What is the kinetic energy of an object with a mass of #3 kg# that has been in freefall for #14 s#? What is the kinetic energy of an object with a mass of #3 kg# that has been in freefall for #7 s#? What is the kinetic energy of an object with a mass of #5 kg# that has been in freefall for #7 s#? What is the kinetic energy of an object with a mass of #5 kg# that has been in freefall for #8 s#? What is the kinetic energy of an object with a mass of #9 kg# that has been in freefall for #1 s#? What is the kinetic energy of an object with a mass of #5 kg# that has been in freefall for #1 s#? What is the kinetic energy of an object with a mass of #5# # kg# that has been in freefall for #12# #s#? What is the kinetic energy of an object with a mass of #7 kg# that has been in freefall for #12 s#? What is the kinetic energy of an object with a mass of #7 kg# that has been in freefall for #3 s#? What is the kinetic energy of an object with a mass of #9 kg# that has been in freefall for #3 s#? What is the kinetic energy of an object with a mass of #6# #kg# that has been in freefall for #8# #s#? What is the kinetic energy of an object with a mass of #15 kg# that has been in freefall for #18 s#? What is the kinetic energy of an object with a mass of #15 kg# that has been in freefall for #3 s#? What is the kinetic energy of an object with a mass of #15 kg# that has been in freefall for #2 s#? What is the kinetic energy of an object with a mass of #10 kg# that has been in freefall for #2 s#? What is the kinetic energy of an object with a mass of #3 kg# that has been in freefall for #2 s#? What is the kinetic energy of an object with a mass of #3 kg# that has been in freefall for #6 s#? What is the kinetic energy of an object with a mass of #3 kg# that has been in freefall for #28 s#? What is the kinetic energy of an object with a mass of #3# # kg# that has been in freefall for #9# # s#? What is the kinetic energy of an object with a mass of #3 kg# that has been in freefall for # 7 s#? What is the kinetic energy of an object with a mass of # 5 kg# that has been in freefall for # 2 s#? What is the kinetic energy of an object with a mass of # 5 kg# that has been in freefall for # 4 s#? What is the kinetic energy of an object with a mass of # 16 kg# that has been in freefall for # 4 s#? What is the kinetic energy of an object with a mass of # 16 kg# that has been in freefall for # 2 s#? What is the kinetic energy of an object with a mass of # 16 kg# that has been in freefall for # 6 s#? What is the kinetic energy of an object with a mass of # 15 kg# that has been in freefall for # 7 s#? What is the kinetic energy of an object with a mass of # 15 kg# that has been in freefall for # 9 s#? The pressure of a gas in a 0.1 m^3 container is 150kPa.Find the number of gas molecules in the container if the average translational kinetic energy of each molecule is 5.0 x 10^-21 J? The force applied against an object moving horizontally on a linear path is described by #F(x)= x+2 N #. By how much does the object's kinetic energy change as the object moves from # x in [ 1 , 3 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= 4x+3 N #. By how much does the object's kinetic energy change as the object moves from # x in [ 1 , 3 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= 4x+3 N #. By how much does the object's kinetic energy change as the object moves from # x in [ 1 , 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= x+3 N #. By how much does the object's kinetic energy change as the object moves from # x in [ 1 , 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= x^2 +3 N #. By how much does the object's kinetic energy change as the object moves from # x in [ 1 , 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= x^2 + x N #. By how much does the object's kinetic energy change as the object moves from # x in [ 1 , 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= x^2 + x N #. By how much does the object's kinetic energy change as the object moves from # x in [ 2, 5 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= x^2 + 7 N #. By how much does the object's kinetic energy change as the object moves from # x in [ 2, 5 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= sinpix +2 #. By how much does the object's kinetic energy change as the object moves from # x in [ 2, 5 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= cospix+1 #. By how much does the object's kinetic energy change as the object moves from # x in [ 2, 5 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= cospix+1 #. By how much does the object's kinetic energy change as the object moves from # x in [ 0, 3 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= cospix+x #. By how much does the object's kinetic energy change as the object moves from # x in [ 0, 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= cospix+3x #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= 4x^2+5x #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= 4x^2+x #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= 4x^2+x #. By how much does the object's kinetic energy change as the object moves from # x in [ 0, 4]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=8-x#. By how much does the object's kinetic energy change as the object moves from # x in [ 0, 4]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=8-x#. By how much does the object's kinetic energy change as the object moves from # x in [ 2, 4]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=x^2-x+4#. By how much does the object's kinetic energy change as the object moves from # x in [ 2, 4]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=x^2-x+2 #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 3 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=x^2-x+1 #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=x^2-3x +5#. By how much does the object's kinetic energy change as the object moves from # x in [ 0 , 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=x^2-3x + 3 #. By how much does the object's kinetic energy change as the object moves from # x in [ 0 , 1 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=x^3+ 3 #. By how much does the object's kinetic energy change as the object moves from # x in [ 3, 5 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=2x +4 #. By how much does the object's kinetic energy change as the object moves from # x in [ 3, 5 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=2x +2 #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 3 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=x^2+ 5 #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=x^2+ x-1 #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 2 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=4e^x+ 1/x #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 3 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)=xe^x+ 1/x #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 3 ]#? The force applied against an object moving horizontally on a linear path is described by #F(x)= 1/x #. By how much does the object's kinetic energy change as the object moves from # x in [ 1, 3 ]#? Question #16211 Which has more thermal energy, a 5-kg bowling all that has been resting on a hot driveway for 4 hours on a 35Â° day, or the same bowling ball rolling down a lane on an air-conditioned bowling alley? What is the meaning of #e= mc^2#? A pinball bangs against a bumper, giving the ball a speed of 52 cm/s. If the ball has a mass of 50.0 g, what is the ball's kinetic energy in joules? Question #4d195 A girl who weighs 30 kg is inline skating at a speed of 5 m/s. What is the girl's kinetic energy? Question #11a21 Question #35835 Question #1411e What is the velocity #5.0 " furlongs"/"fortnight"# in #"meters"/"second"#? Question #962dd Are these three formulas correct? Question #46f4c Question #b3589 Let #l# be a line described by equation ax+by+c=0 and let #P(x,y)# be a point not on #l#. Express the distance, #d# between #l and P# in terms of the coefficients #a, b and c# of the equation of line? Question #607c0 Question #5745c Question #a1a05 Question #99e2b A roller coaster has a hill that is #20m# tall. If the roller coaster cart is moving at #20m/s# as it enters the bottom of the hill, how do you answer the following questions? A #0.5kg# rubber ball is thrown straight up into the air. At a height of #20m# above the ground, it is travelling at #15m/s#. How do you answer the following questions? A cat has a mass of 3 kg and runs at a speed of 6 m/s. How much kinetic energy does the cat have? What is the relation between kinetic energy and momentum ? The power rating of a vacuum cleaner is 0.8 kilowatts. If you use the vacuum cleaner for 2.5 hours, how much energy does it use? At room temperature, an oxygen molecule, with mass of #5.31 x 10^-26 kg#, typically has a KE of about #6.21 x 10-21# J. How fast is the molecule moving? Question #b7f35 Question #e45a9 Question #987f5 Jack rides his bicycle along a level road and has a total kinetic energy od 1440J. He brakes, exerting a force of 200N on the wheels. a) How far does he travel before he stops? b) What happens to temputure of the brakes? Explai your answer. Question #a9aa2 Question #ace10 Question #6abfe Question #1fd81 Question #8835e Question #95ec3 Question #79071 Question #d21dd Question #0b453 Question #ee7c8 Question #c236b Question #f8416 Question #8e674 Question #3c3a8 Question #82b13 When a ball at rest is dropped, can it rebound to a greater height than its original height? Question #f4d9a Kinetic Energy Question? A hat weighing #5"N"# is placed on a hook #1.5"m"# above the ground. What is the potential energy of the hat? Question #b0468 Question #dc60d Question #7f373 An object travelling at #30m/(sec.)# has kinetic energy #33,750# joules. What is its mass? Question #8f92d Question #551ee Question #2cc01 Question #02750 What is mechanical energy? What is the GPE of the 10-kg rock at the top of the house, at the top of the cliff and at the bottom of the cliff? Does a moving massive object have more kinetic energy than a lighter object? Question #63622 What is the relationship between work and energy? Question #56a40 Question #120e6 Question #e2a90 Question #35136 Question #bf29f Question #d8042 What is the energy transformation equation for: a diver jumps off a diving board? (Is the below correct?) Can all substances have elastic potential energy? Question #5b15a Question #e1ca3 Question #14ee4 What is the speed of the block when it has moved a distance of 0.0200 m from its initial position? (At this point the spring is compressed 0.0190 m). See details. What is the magnitude of the acceleration of the block when it is at the point #x= 0.24 m#, #y= 0.52m#? What is the direction of the acceleration of the block when it is at the point #x= 0.24m#, #y= 0.52m#? (See details). Question #2f246 Question #41090 Question #dbcef Question #1e736 How many joules are there in a candy bar containing 230,000 calories? What's the difference between force and energy? Question #b63d2 Question #6784c Question #0e30c Question #eeed8 Question #1a784 Question #1549b Using values from this table, how many DNA molecules could be broken by the energy accumulated from the fusion of all the hydrogen in the oceans on Earth? Question #ba86e Question #89c4f Question #ac65e Question #ed040 Question #817a2 Question #2983d Question #19fce Question #bd2dd Question #58a38 Question #e4198 Question #91a05 Question #b1f24 Question #3b535 Question #c9987 Question #8112e According to classical physics, energy was thought to be "continuous." What does this mean? Question #86795 If momentum of an object is doubled, then what is the change in its kinetic energy? What happens to the kinetic energy of an object if we halve the velocity? Question #70f00 Question #ef01c What is the form of energy acquired from food? Question #eabb8 Let's say a cart was rolling down a ramp. If the mass of the cart increases, why would the gravitational potential energy remain the same? This was explained in my Physics class, but I still do not understand. Kinetic energy of an object is 25 j. Velocity is 5 m/s what will be its kinetic energy if velocity is doubles? A person in an airplane has a mass of 74 kg and 6.6 MJ of gravitational potential energy. What is the altitude of the plane? Which has greater kinetic energy a 2 kg mass moving at 3 m/s,or,a 1 kg mass moving at 6 m/s? Work and Energy View all chapters Work Energy Conservation of Energy Power Simple Machines Prev Next