The force that causes an impulse and a force that causes a change in momentum are?

A pitcher throws a baseball at 45 m/s. The baseball has a mass of 400 grams. Disregarding air resistance, the baseball's momentum when it hits the catcher's mitt is a0 kg*m/s.

A heat engine does 30 j of work per cycle while exhausting 50 j of waste heat. what is the engine's thermal efficiency?

Write a short story, the story is to describe a motion activity appropriate for school that contains 2 acceleration segments. The two acceleration segments must represent different modes of acceleration

Heat is transferred in three ways from one place to another. The mechanism of heat transfer whereby atoms or molecules of matter in a hotter part of the material vibrate or move with greater kinetic energy than atoms in the colder part and transfer

If predators are increased, then the cricket frog population will (increase/decrease/stay the same) over the span of five years.

About how much energy is transferred between a producer and primary consumer? A. 90% of the original energy from the Sun is transferred B. 10% of the original energy from the Sun is transferred C. 10% of the plant's energy is transferred D. 0.

If you exert a force of 500 n to walk 4 m up a flight of stairs in 4 s, how much power do you use?

The concepts of a "particle" and a "wave"

If a particle undergoes shm with amplitude 0.10 m, what is the total distance it travels in one period?

If the length of one side of a square is 12.0 m, what is the perimeter of the square?