How many grams of 2Na+Cl2 would it take to make 4 grams of table salt

Consider a basketball rolling (without slipping) down an inclined plane. The basketball is basically a thin spherical shell, so its moment of inertia I = 2 3 M R2. Given the angle of 32.

A 217 kg motorcycle moves with a velocity of 2 m/s. what is it's kinetic energy?

How fast (as a percentage of light speed would a star have to be moving so that the frequency of the light we receive from it is 13.0 % higher than the frequency of the light it is emitting?

Your favorite cousin, who is 20 years old, has just been diagnosed with type 2 diabetes. He is overweight and spends most of his time playing computer games or watching television. As a health professional, what advice will you give him?

Which of the following statements is true? a. Energy as heat is transferred from a lower temperature to a higher temperature. b. Energy as heat is transferred from a higher temperature to a lower temperature. c.

1) What happens when two negatively charged tape strips are placed near each other?

Claudia throws a baseball to her dog. Which free-body diagram shows the baseball when it's flying horizontally in midair? (Assume no air resistance.)

What causes an air conditioned to turn on

A turntable is spinning on a frictionless axle when a ball of putty is dropped onto it from above. The putty sticks to the turntable when it lands. Is angular momentum conserved for the turntable and putty (the system) during this process?

The speedof a boat in still water is v. The boat is to make a round-trip ina river whose current travels at speed u.