What is formed from at least two types of chemically combined atoms?

A box slides from the top of a ramp to the bottom, its maximum potential energy is located

A telescope with a 60 mm objective lens collects how many times as much light as does your eye's 6 mm pupil?

Which formula can be used to find the angle of the resultant vector has

How much of the moon is always illuminated by the sun?

What naturally accurring radioisotope is used as the fuel for a nuclear reactor

Which of the following statements correctly compares the frequency and energy of infrared waves and ultraviolet waves? A Infrared waves have lower frequencies than ultraviolet waves.

An object in the solar system orbits the Sun and has enough mass that its gravity has pulled it into a spherical shape, but it does not have enough gravity to clear its neighborhood of orbiting debris. This object is classified as:

An 8.5 l tire is filled with 0.55 moles of gas at a temperature of 305 k. what is the pressure of the gas in the tire?

Total internal reflection occurs only if

A radioactive nucleus at rest decays into a second nucleus, an electron, and a neutrino. the electron and neutrino are emitted at right angles and have momenta of 9.80 ✕ 10-23 kg·m/s, and 5.70 ✕ 10-23 kg·m/s, respectively.