I’m stuck on this question

Astate of matter all that has define volume and can flow is a(n)

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

In the first law of thermodynamics, triangle e=q-w, what does q stand for