How many neutrons are present in an atom of iron-54? A) 26 B) 28 C) 30 D) 54

A bicyclist and his bike together have a mass of 70 kg and a speed of 6 m/s. How much work would be done for the biker to accelerate to 10 m/s?

All ions are atoms with a what? A. positive charge B. Negative charge C. Charge D. Neutral charge

How many electrons must be removed from a neutral, isolated conducting sphere to give it a positive charge of 8.0 x 10 8 C? [Q=ne]

How much heat is needed to raise the temperature of 10g of water by 16°C?

At a certain instant after jumping from the airplane A, a skydiver B is in the position shown and has reached a terminal (constant) speed vB = 52 m/s.

If object A has more mass than object B, does object A contain more matter? Explain.

Describe a beach that was near stormy seas and powerful waves

We all depend on electricity. Most electricity is created by electromagnetic generators at large power plants and distributed through an electric grid.

A rock with mass m = 4.00 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 17.

On arrival at a vehicle collision, you observe a small fire in the engine compartment. A bystander is attempting to smother the fire with a jacket as you approach with an A-B-C extinguisher from your ambulance.