How does an open parachute increase the air resistance of a falling skydiver? a by increasing surface area b by increasing terminal velocity c by reducing the weight of the diver d by reducing fluid friction

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same