Give an example of each simple machine

You are swimming with your buddies on a beach in the surf. you leave your cooler and supplies on the beach, and after a half hour you swim back to shore, but your stuff isn't there. you look along the beach and see your cooler 200 m down the beach.

In which century was the DNA database established? The DNA database was established in the century

A train is moving with a speed of 50 miles per hour. A man standing in the rear of a train car throws a ball toward the front of the train with a speed of 10 miles per hour.

What happens in terms of energy when a moving car hits a parked car, causing the parked car to move? A) The moving car transfers kinetic energy to the parked car. B) Kinetic energy in the moving car disappears.

Corrosion is the tendency of a metal to revert back to its natural state.

Which of the following is the most accurate statement concerning the properties of matter? a. they can be written as symbols b. they can be observed and measured c. they cannot be tested or verified d. they change with the amount of matter present

Danilo is sliding down a slide. What forces are acting on him as he slides

If you want your investment or savings account to be easily turned into cash without losing its value, you should consider the?

What is the definition of "gravitational potential energy"?

A number of food chains linked together