When you catch a baseball, what kind of work do you do, negative or positive? by catching the ball, what do you change? what energy does it gain or lose?

Consider two identical small steel balls dropped into two identical containers, one filled with water and the other with oil. Which ball will reach the bottom of the container first? Why?

What happens when rock fails?

Which of the following statements correctly described natural electric fields? Thunder is evidence of electric fields in the atmosphere.

What is the mass of a volleyball that has 260 J of kinetic energy and travels at a velocity of 15m/s

Add these measurements, using significant figure rules 1.0090cm + 0.02cm

What was significant about the atomic theory that democrituis proposed?

What is the mechanical advantage of a pulley?

What kind of movement does the heat within the core and mantle directly generate?

Explain why Newton's first law of motion can be difficult to observe in moving objects?

No force is necessary to