If the seat weighs 305 N and a 875 N person is sitting in it, find the tension Thorizontal in the horizontal cable.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

It is really hard for me right know

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.