Infer why gases such as the oxygen used at hospitals are compressed. why must compressed gases be shielded from high temperatures? what must happen to compressed oxygen before it can be inhaled?

Calculate the rotational inertia of each of the following uniform objects about the axes indicated: a) A thin 2.5 kg rod of length 0.75 m, about an axis perpendicular to it and passing through its center. b) A 3 kg thin walled hollow sphere 0.

A proton in an accelerator attains a speed of 0.772c. what is the magnitude of the momentum of the proton?

According to the ideal gas law, increasing the volume of a closed reaction container decreases the thermal energy because the A) R is divided. B) temperature increases. C) collision frequency remains the same.

Two people on skateboards, Brian and Amy, push off from each other. Brian has more mass than Amy. Who experiences a larger force?

Find the volume of water displaced for 1.5 kg of pure gold.

Like the polar bear, the walrus is a strong swimmer, although it does not have the same endurance. For short periods of time, a walrus can swim at an average speed of 9.7 m/s. How far would a walrus swim at this speed in 3.4 minutes?

How did Einstein's and Newton's theories differ in terms of explaining the cause of gravity?

A sled being dragged to the right across loosely packed snow with a rightward acceleration

Imagine two artificial satellites orbiting earth at the same distance. one satellite has a greater mass then the other one which of the following would be true about there motion? 1.

What is energy? (Not the answer from google search.)