The sum of the protons and neutrons in an atom equals the

a. atomic number.

b. number of electrons.

c. atomic mass.

d. mass number.

force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching it from its natural length to 6 in. beyond its natural length?

What is the meaning of alines moving up in position/time graph

If a particle undergoes shm with amplitude 0.21 m, what is the total distance it travels in one period?

When a pair of enantiomers is treated with a single (pure) enantiomer of another compound, the resulting mixture is?

A rectangular gasoline tank can hold 36.0 kg of gasoline when full. what is the depth of the tank (in m) if it is 0.450 m wide by 0.900 m long? m (b) what is the volume of the tank (in gal) ? (it is suitable for a passenger car.) gal

Explain why models are often used to study other planets.

The main factors that affect an area's temperature are prevailing winds and mountains. a. True b. False

What is the displacement of an object during a specific unit of time?

Is there an end of rainbow

A downhill skier was able to move 560 meters in 25 seconds. What is the skier's average speed? (Round your answer to the nearest tenth of a meter per second.)