Why there are not green stars?

Two boys are standing on the two sides of a stationary boat. One has a mass of 70 kg and the other has 50 kg. If they jump at 4ms-1 at a time, the boat will go in either direction.

Which property describes the amount of energy that flows past a given area per unit of time?

If the mass of a moving object decreases from 100 grams to 25 grams, what happens to its momentum

The speed of sound in air is about 340 meters per second. You see a flash of lightning, then hear the thunder 9 seconds later. Calculate the distance between you and the storm in meters, then convert to kilometers.

what would happen when an inflated balloon is place in an ice bath and the atmosphere pressure has not changed?

Which of the following is NOT a vector quantity? (A) Acceleration (B) Average velocity (C) Linear momentum (D) Potential energy (E) Force

Which of Newton's laws of motion is demonstrated by a hammer pounding a nail into a board

Heated air molecules in a hot air balloon soon carried thermal energy to the top of the balloon. this is an example of ... conduction. Convection. Radiation. Cooling.

When you are ice skating, to get started, you push your skate backwards on the ice and, as a result, begin to move forward. Which law of motion is being described in this scenario?

When attempting to solve a difficult problem, the best scientific approach would be to a. bring together a team of scientists with different backgrounds and perspectives to work together to find a solution to the problem. b.