An electron has angular momentum that does not result from its orbital motion. What is the source of this momentum? A) electron spin
B) electric charge
C) magnetic force
D) mass defect

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?