What is the definition of work in Physics?

in a certain right triangle, the two sides that are perpendicular to each other are 5.9 and 5.1 m long. what is the tangent of the angle for which 5.9 m is the opposite side?

What are earthquake prone zones

A helicopter is hovering at an altitude of 200m above the surface of the lake. A speaker on the helicopter is sending out sound waves which are reflected from both the surface of the water and bottom of the lake.

The U. S. Navy has long proposed the construction of extremely low frequency (ELF waves) communications systems; such waves could penetrate the oceans to reach distant submarines.

Two blocks are in contact on a horizontal frictionless surface. A 60N constant horizontal force is applied to A. The mass of A is 3.0 kg and the mass of B is 15kg. What is the magnitiure of the force of A on B?

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.