What do scientists use observations for?

When you hold a ball above ground it has kinetic energy true or false

Lexy used the formula shown to calculate the force of gravity on a space shuttle. Fg = G What does 3 * 105 kg represent?

A boy is running with a kinetic energy of 810 j if the boy has a mass of 80 kg whats his speed?

When students work in a chemistry lab, the location of which items would be the most important for each student to know?

You're driving down the highway late one night at 16m/s when a deer steps onto the road 44m in front of you. Your reaction time before stepping on the brakes is 0.50s, and the maximum deceleration of your car is 10m/s2.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.