Acat lies on the floor. can you say that no force acts on the cat? or is it correct to say that no net force acts on the cat? explain.

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?