6. If a person pushes a cart with a force of 40

N and it accelerates at 0.5 m/s2, what is the

mass of the cart?

a. 80N

b. 80 kg

C. 20 N

d. 20 kg

Four students made statements about a

What happens to most materials when they are heated?

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Select the major problems associated with the production of nuclear energy. air pollution hazardous solid wastes depletion of natural resources potential reactor accidents harm to animal and plant life Next Question