Which state of matter will hold its shape without a container? a. solid c. gas b. liquid d. plasma

With i really need the correct answer!

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

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?