You do 45 j of work in 3 seconds. how much power do you use

Assume that the lower leg and the foot together have a combined mass of 4.0 kg, and that their combined center of gravity is at the center of the lower leg.

what is the best way to increase the rate of evaporation a. increase temperature b. decrease temperature c. decrease surface area

If the force on the tympanic membrane (eardrum) increases by about 1.4 N above the force from the atmospheric pressure, the membrane can be damaged.

A 17 kg box sitting on a shelf has a potential energy of 350 J. How high is the shelf? Round your answer to the nearest whole number. The shelf is m high.

The pushes and pulls described in units of newtons. which characteristics of matter was measured

A football travels 25 m in 2.5 seconds. What is the speed of the football?

A 25 kg ball is thrown into the air when thrown it's going 10 m/s calculate how high it travels

As part of a circus performance, a man is attempting to throw a dart into an apple which is dropped from an overhead platform. Upon release of the apple, the man has a reflex delay of 215 milliseconds before throwing the dart.

A train travels 90 kilometers in 1 hour, and then 82 kilometers in 5 hours. What is it's average speed?

3. A hydraulic lift is used to jack a 950-kg car 45 cm off the floor. The diameter of the output piston is 23 cm, and the input force is 375 N. a. What is the area of the input piston? (10pts) b.