What kind of friction exists between solid objects moving In water? static friction
sliding friction
rolling friction
drag

Farmer a has a deep well and needs a lot of water for her animals and crops. her neighbor, farmer b, has a shallower well. he needs less water than farmer a because his farm is smaller. in years of drought, sometimes farmer b can't get any water from his wells. what can farmer b do to decrease the likelihood of his well running dry?

A200 g lead frying pan gains 2000 joules of heat. what is the change in temperature

Which of the following is tru about semi-conductors