Which of the following describes a machine that is made up of a lever and a wedge?

simple machine

compound machine

pulley

efficiency

Dogs are able to hear much higher frequencies than humans are capable of detecting. For this reason, dog whistles that are inaudible to the human ear can be heard easily by a dog.

What are three types of muscle fibers? A.) smooth, intermediate-twitch, cardiac B.) slow twitch, intermediate twitch, fast twitch C.) smooth, cardiac, skeletal D.) slow twitch, fast twitch, involuntary

Select the correct answer. An airplane is flying at a constant speed in a positive direction. It slows down when it approaches the airport where it's going to land. Which term describes the slowing of the plane? A. stationaryB. positive velocityC.

What repels radiant energy

About 40 j is required to push a crate 4 m across a floor. if the push is in the same direction as the motion of the crate, the force on the crate is about

A process occurs in which a system's potential energy increases while the environment does work on the system.

What does the theory of plate tectonics suggest?

The clavicle is also called the

Astronomers want to study a star in the Andromeda galaxy, the closest galaxy to our own. Which instrument has the advanced technology needed to study such a far-off object? Select three options. A. rover B. probe C. satellite D. space station E.

Tp-11 why must you operate the exhaust blower before starting a boat's inboard gasoline engine?