Any device that makes work easier is called a.

1) how does reflection differ from diffraction? A.) reflection is the only process in which the wave does not continue moving forward. B.) reflection is the only process that involves a change in the wave C.

A model rocket with a mass of 0.181 kg is launched into the air with an initial speed of 92 m/s. How much kinetic energy will the rocket have at a height of 164 m? Assume there is no wind resistance.

A 20-kg object is subjected to three forces which produce an acceleration a = - 8 m. s^-2 i + 6.0 m. s^-2 j on the object. Two of the forces are:F1 = 3.0 N i + 16.0 N jF2 = - 12.0 N i + 8.0 N jFind the third force.

What is meant by critical angle of indence?

A quarterback throws the football to a stationary receiver who is 16.1 m down the field. the football is thrown at an initial angle of 38.1 ◦ to the ground. the acceleration of gravity is 9.81 m/s 2. a.

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.