What is the role of a neutrons in the nucleus?

Which of the following is a product of respiration resulting from the breaking of carbon-carbon bonds

A particle (q = 3.0 mC, m = 20 g) has a speed of 20 m/s when it enters a region where the electric field has a constant magnitude of 80 N/C and a direction which is the same as the velocity of the particle. What is the speed of the particle 3.

An athlete practicing for a track meet ran 400 meter in 50 seconds. What was his average speed?

What are the wavelengths of electrons with kinetic energies 10 ev, 1000 ev, and 10^7 ev?

Iridium is a component of cosmic dust that rains down upon the earth at a constant rate. Why did Luis Alvarez suggest measuring iridium levels in the K-T boundary? A. He hypothesized that the layer was caused by a supernova explosion. B.

Which statement describes how light behaves when it strikes a translucent material? A. Light is scattered. B. Light is transmitted. C. Light is reflected. D. Light is absorbed.

A certain gas is present in a 15.0 l cylinder at 2.0 atm pressure. if the pressure is increased to 4.0 atm the volume of the gas decreases to 7.5 l.

Choose all the answers that apply. To qualify as a planet, a celestial object must: have an irregular shape revolve around the sun orbit in a clear area have enough gravity to have a spherical shape have a satellite

Oxygen makes up the largest part of living cells at 65%. What is the percentage of the second-most abundant element in living cells?

Acceleration is defined as the rate of change for which of the following? A. time B. velocity C. position D. displacement