Sally changed the experiment to pick up paper clips instead of staples. Her data showed that the electromagnet could hold 12 small paper clips. How do you think changing the size of the paper clip would affect the total number of paper clips the electromagnet would be able to lift?

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)