Which statements accurately relate radiation and health? Check all that apply.

Ionizing radiation produces ions that disrupt natural chemical reactions in the body.
Stochastic effects are associated with short-term, high-level exposure to radiation.
Cancer and DNA mutations are examples of non-stochastic effects.
A single X-ray delivers about of the radiation exposure permitted for one person per year.
Lead shielding is an effective means of reducing radiation exposure.

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

The softest and hardest minerals are: softest hardest

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?