Let us considered two forces of magnitude P=30n and Q=40n acting at acute angle 60

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?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?