In a certain right triangle, the two sides that are perpendicular to each other are 7.00 m and 8.30 m long. What is the tangent of the angle for which 7.00 m is the opposite side?

Differences between plastic and metal

Heat is added to an open pan of water at 100.0°c, vaporizing the water. the expanding steam that results does 43.0 kj of work, and the internal energy of the system increases by 604 kj. how much energy is transferred to the system as heat?

What is the mass of a car that weighs 140,000 N

How do moving electric charges create magnetic fields?

If i play two pure tones, one at 100 hz and the other at 110hz, will we perceive beats? if so, what will be the beat frequency

The entropy of a hot baked potato decreases as it cools. is this a violation of the increase of entropy principle? explain.

When aluminum-27 is bombarded with a neutron, a gamma ray is emitted. what radioactive isotope is produced?

A sonar device on a ship sends ultrasound waves under the water to locate a sunken ship. It takes the ultrasound wave 0.6 seconds to travel from the device to the sunken ship and back again. How far below the surface is the sunken ship?

How can you determine the type of radiation an atom emits as its nucleus decays

The atoms of which elements are most likely to share many electrons among many atoms? Check all that apply.