Al was his sister, betsy, slide down the slide at the park. she held on to the sides of the slide the whole way down. when they got to the bottom, she noticed that her hands were warm. what caused betsy's hands to be warm?

The answer to your question is Friction

Explanation:

As is mentioned in the question, Betsy held on to the sides of the slide the whole way down, that means that her hands were rubbing the slide and this process causes a force called friction. And Friction is perceived as heat.

The definition of friction is: Friction is the resistance to motion of one object moving relative to another.

In your question her hands create a resistance to motion.

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.