Physics

Physics, 16.07.2019 16:00, sandersmakaylaovq5vu

How kinetic energy and speed are related?

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Chemistry, 21.06.2019 13:30, bmr12

Asap , 8th grade science 50 points 1) a 2kg bowling ball sits on top of a building that is 40 m tall. what type of energy does it have? potential energy energy of acceleration kinetic energy chemical energy 2) a 2 kg bowling ball sits on top of a building that is 40 meters tall. how much potential energy does it have? 784 j 80 j 784 n 78.4 j 3) a 4 kg bowling ball rolls at a speed of 5 m/s on the roof of a building that is 30 meters tall. what type of energy does the bowling ball have? both potential and kinetic energy kinetic energy potential energy speed 4) a 4 kg bowling ball rolls at a speed of 5 m/s on the roof of a building that is 30 meters tall. what is its kinetic energy? 50 j 10 j 120 j 1,176 j 5) an 8 kg bowling ball rolls at a speed of 10 m/s on the ground. what type of energy does the bowling ball have? kinetic acceleration potential speed 6) an 8 kg bowling ball rolls at a speed of 10 m/s on the ground. what is its kinetic energy? 40 j 80 j 160 j 400 j 7) a 20 kg child is tossed in the air by her parent. what is her kinetic energy when she is 2 meters off the ground traveling at 5 m/s? 200 j 40 j 100 j 250 j 8) a 1,000 kg car has 50,000 j of kinetic energy. what is its speed? 100 m/s 150 m/s 50 m/s 10 m/s 9) a 200 kg boulder has 39,200 j of gravitational potential energy. what height is it at? 50 m 20 m 150 m 200 m 10) a 1 kg model airplane has 12.5 j of kinetic energy and 98 j of gravitational potential energy. what is its speed? 5 m/s 10 m/s 15 m/s 20 m/s

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Physics, 25.07.2019 14:30, joannakawata6

Apuppy weighing 3 kilograms races through the dog park. if she slows from a speed of 2 meters/second to 1 meter/second, what will happen to her kinetic energy? use the kinetic energy equation. a.her kinetic energy decreases to 1.5 j b.her kinetic energy increases to 1.5 j c.her kinetic energy remains unchanged d.her kinetic energy decreases to 1 j.

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Physics, 31.07.2019 13:30, neariah24

Suppose an automobile has 2000-joules of kinetic energy. when it moves at twice the speed, what will be its kinetic energy? what's its kinetic energy at three times the speed?

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Chemistry, 18.08.2019 18:50, briweaver9993

How would the kinetic energy of a 12,000 kg train compare with the kinetic energy of a 900 kg compact car if both were traveling at the same speed? a. the trains kinetic energy would be equal to the cars kinetic energy. b. the trains kinetic energy would be greater than the cards kinetic energy. c. the trains kinetic energy would be less than the cars kinetic energy.

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