Why is understanding the concept of forces, friction and gravity important?

A lever allows a 35 N load to be lifted with a force of 7 N. What is the mechanical advantage of the lever?

Which statements about fresh water and salt water are true? Check all that apply. A pond is a source of salt water. Fresh water is essential to all life on Earth. Half of Earth's water is fresh water. Most of Earth's water is stored in the oceans.

How is Newton's three laws of motion are used in testing the safety of our automobiles.

How long does it take if a snail was to travil a distance of 3 ft at 0.1 ft/sec?

3. A train has broken through the wall of a train station. During the collision, what can be said about the force exerted by the train on the wall? a.

The unit of length most suitable for measuring the thickness of a cell phone is a

A worker pushes horizontally on a large crate with force of 298 N and the crate is moved 4.3 m. How much work was done?

What would happen to the volume of a ballon left on a sunny window sill and which gas law pridict this result

An open-topped freight car with mass 24,000 kg is coasting without friction along a level track. It is raining very hard, and the rain is falling vertically downward. Originally, the car is empty and moving with a speed of 4.00 m/s.

Photons travel outward from a light bulb in