Let's say a 0.001kg bullet moves with a speed of 1500 m/s. A pitcher claims he can throw a 0.15 kg baseball with as much momentum as that bullet. How fast would he have to throw the ball for this to be true?

A fly with a mass of 0.0025 kg flies at a rate of 20.0 m/s. What is the kinetic energy of the fly? Answers are: 0.050 J 0.025 J 0.50 J 1.0 J

How much water does it take to produce one bottle of water?

A billiard ball travels 23 cm in the positive direction, hits the cushion and rebounds in the negative direction, and Finally comes to rest 8.0 cm behind its orbital position. What's the displacement of the ball?

On a dry day, just after washing your hair to remove natural oils and drying it thoroughly, run a plastic comb through it. Small bits of paper will be attracted to the comb. Explain why.

When a charged cloud passes overhead, the goround below is charged by A deduction B electrification C polarization D induction

A basketball player jumps straight up for a ball. To do this, he lowers his body 0.260 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.

Why does Mars have moons even when its mass is small?

During the forging process for a steel sword, the blacksmith places a hot iron blank into a cold bucket of water. Which of the following happens? A. The water molecules move faster. B. The steel molecules move faster. C.

If you are trying to balance a seesaw and you have a higher mass on the left, should the mass on the right be placed at a greater distance or lower distance to balance it? Why?

What are copper atoms held together by