Cooling down after a workout allows the oxygen to continuing moving through the body and keeps the muscles from tightening up to fast

An engine has a hot-reservoir temperature of 980 K and a cold-reservoir temperature of 570 K. The engine operates at three-fifths maximum efficiency. What is the efficiency of the engine?

If a motor neuron involved in a reflex arc is damaged, which event in that arc is least likely to occur?

by scale drawing, find the resultant of vectors 70N inclined at100N and direction of the resultant 100N

The speed at which an object is moving in a specific direction is its A speed. B acceleration rate. C velocity. D mechanical potential energy rate

Are good conductors of heat also good conductors of electricity? Explain your answer.

Mathew, a farmer, cultivates monocultures of wheat. What negative effect will monoculture farming have on Mathew's land? A. crop productivity will decrease B. greenhouse gases will generated C. nutrients will not be recycled back into the soil D.

Which best describes the relationship between the frequency, wavelength, and speed of a wave as the wave travels through different media

A novelty golf ball of mass m is launched with an initial velocity v0 = (25i + 13j) m/s and then follows a parabolic trajectory. At the top of the ball's trajectory, it explodes into two fragments A and B.

How many helium-filled balloons would it take to lift a person? Assume the person has a mass of 80kg and that each helium-filled balloon is spherical with a diameter of 33 cm.?

Which is an application of the principle of uniformitarianism? A. ordering a group of fossils from largest to smallest B. examining a rock to find out what minerals are in the rock C.