Sandra is riding a water slide at her favorite water park. At the top of the slide, she has 5,000 J of gravitational potential energy. After a few seconds, she has 1,736 J of gravitational potential energy. What is her kinetic energy at this point, in J?

The first figure gives spring force FX versus position x for the spring-block arrangement of the second figure. The scale is set by F₂ = 200 N. We release the block at x = 13.0 cm. How much work does the spring do on the block when the block moves from x; = +8.0 cm to (a)x +7.0 cm, (b) x = -7.0 cm, (c) x = -8.0 cm, and (d) x = -11.0 cm? F -x (cm) -2 -1 0 1 -F x=0 Ę=0 00000000 x positive F negative (a) Number i Units (b) Number i Units (c) Number i Units (d) Number i Units (a) d Block attached to spring (b) x negative Ę positive (c)

An object that has a gravitational potential energy of 734 J is lifted 5 meters.  What is the object's mass? Question 9 options: 9.8 kg 735 kg 15 kg 3 kg

You push a heavy box along the floor with a force of 775 N for a distance of 15 meters.  The friction force you push against is 255 N. How much work does the force of friction do against you?