Why do astronauts feel weightless in space?

An egg is dropped from a height of 20 m. The egg is in free fall the entire time it falls. What wilLthe speed of the egg be when it lands after fallinG for 2 seconds?

The magnitude of the electrical force acting between a + 2.4 * 10-8 C charge and a + 1.8 * 10-6 C charge that are separated by 0.008 m is N, rounded to the tenths place.

What does the word invulnerable mean

Why wheat flour is usually passed near a magnet before being packed?

A scientist studies how the temperature of a baseball affects the distance it travels when hit by a bat. What will make this experiment more repeatable? A. Having an experimental variable B. Reporting all the details of the experiment in a journal C.

Cardiovascular exercise can

Kathy tests her new sports car by racing with Stan, an experienced racer. Both start from rest, but Kathy leaves the starting line 1.00 s after Stan does. Stan moves with a constant acceleration of 3.1 m/s2 while Kathy maintains an acceleration of 4.

A 0.0010-kg pellet is fired at a speed of 50.0m/s at a motionless 0.35-kg piece of balsa wood. When the pellet hits the wood, it sticks in the wood and they slide off together. With what speed do they slide?

Jim measures the count rate of a sample of americium-241 as 120cpm. Roughly how long would it take for the count rate to fall below 4 cpm. Show your working

Explain and give an example of newtons 3rd law of motion