Suppose Galileo dropped a lead ball (100 kilograms) and a glass ball (1 kilogram) from the Leaning Tower of Pisa. Which one hit the ground first?

How does a car's kinetic energy change when it speeds up from 10 to 20 m/s? a. It quadruples. b. It stays the same. c. It doubles. d. It triples.

If you are asked to determine an object's speed, what information must you have? a. distance and period of time b. distance and change in position c. period of time and direction d. distance and direction

What is gravity? Is gravity a force?

Scientists use laser range-finding to measure the distance to the moon with great accuracy. A brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope.

How can you make gravity smaller and bigger

Use your knowledge of the state of matter and the other physical properties of matter to write an explanation for what may have caused the following situation: Although it hasn't rained in a week, every morning the grass and the car windows are wet.

What is three example of technology

Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?

Which has a greater speed a heron hat travels 600m in 60 seconds or a duck that travels 60 m in 5 seconds? Explain

A machine shovel moves dirt at the rate of 1,100 pounds of dirt 1 foot in 1 second. How many horsepower is this?