What causes motion to remain the same?

You are in a canyon and yell across. It takes 4 seconds for the echo to come back to you. How wide is the canyon?

A spherical balloon has a radius of 8.35 m and is filled with helium. how large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 800 kg? neglect the bouyant force on the cargo volume itself.

Technological advances are now making it possible to link visible-light telescopes so that they can achieve the same angular resolution as a single telescope over 300 meters in size.

a 0.0780 kg lemming runs off a 5.36 m high cliff at 4.84 m/s. what is its potential energy (PE) when it is 2.00 m above the ground

What is the net work done on the 20kg block while it moves the 4 meters? A. 240J B. - 200J C. 120J D. 0J

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.