All of the following are correct, except: A Gamma rays can be used in the food industry to preserve food.

B X-rays, gamma rays, and ultraviolet
light can all be used in the healthcare field

C Ultraviolet light waves can be used to
sterilize items such as medical
equipment.

D. X-rays can be used to treat cancer and
sterilize medical equipment.

A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?

The mass of the sun is 1.99×1030kg and its distance to the earth is 1.50×1011m. what is the gravitational force of the sun on the earth?

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).