A 60 KG skier's racing down a course at 20 M/S what is the skiers momentum

Substance a has a density of 3 g/cm3 and substance b has a density of 4 g/cm3. in order to obtain equal masses of these two substances, what must be the ratio of the volume of a to the volume of b?

Which drink is an example of a compound? a. lemonade b. ice tea C. vanilla milkshake d. water

A pump is used to empty a 5200 L wading pool. The water exits the 3.0-cm-diameter hose at a speed of 2.2 m/s. How long will it take to empty the pool? Express your answer using two significant figures.

What is the requirement for a core to be used in an electromagnet? A. It must be able to be increased. B. It cannot be magnetized. C. It must be an ion. D. It must be able to be magnetized.

Which are ways to improve the design of this experiment? Check all that apply. Record data only at the very end to save time. Experiment with a wider range of materials. Use more legible handwriting when recording data.

You have just installed a new sound card in your system, and Windows says the card installed with no errors. When you plug up the speakers and try to play a music CD, you hear no sound. What is the first thing you should do? The second thing? a.

Why does convection occur only in fluids?

The force of repulsion between two like-charged particles will increase if

An automobile tire having a temperature of -2.6°C (a cold tire on a cold day) is filled to a gauge pressure of 24 lb/in^2 What would be the gauge pressure in the tire when its temperature rises to 43◦C?

Compared to that of a plane on the ground, Earth's gravitational pull on a plane 7 miles above Earth is approximately A) zero. B) the same. C) half as much. D) twice as much.