A natural solid formed from elements and compounds in earth's crust is

An alpha particle (a He nucleus, containing two protons and two neutrons and having a mass of 6.64*10-27 kg) traveling horizontally at 35.0 km/s enters a uniform, vertical, 1.16 T magnetic field. Part A.

Which statement is true of the electromagnetic spectrum? The higher the radiant energy, the higher the frequency and the longer the wavelength. The lower the radiant energy, the lower the frequency and the longer the wavelength.

What is time? With or without explanation

The charge of a single electron A) is 0. B) is - 1 C) depends on how many surround the atom D) depends of which element the atom belongs to

Light is incident on a piece of glass in air at an angle of 33 degrees from the normal. If the index of refraction of the glass is 1.5, what is the angle in degrees that the refracted ray makes with the normal?

A 5.00*105-kg subway train is brought to a stop from a speed of 0.500 m/s in 0.400 m by a large spring bumper at the end of its track. what is the force constant k of the spring

A moving object always has energy in its?

What is the volume of a box that is 12 cm long, 2 cm wide, and 3 cm high?

Suppose a child drives a bumper car head on into the side rail, which exerts a force of 4000 N on the car for 0.200 s. (a) What impulse is imparted by this force?

If a soundproof door is almost shut but still leaves a small opening, what wave phenomenon is responsible for someone being able to hear sound from the room while standing by the wall to the side of the opening?