Why have astronomers placed telescopes in space?

You put two ice cubes in a glass and fill the glass to the rim with water. As the ice melts, the water level A. rises and water spills out of the glass. B. drops at first, then rises until a little water spills out. C. drops below the rim. D.

What is a light year? The time it takes for light to reach Earth from the sun, the distance light travels in one year, the time it takes for light to travel around the sun or the distance light can travel in a year before it burns out.

Mike shoots a large marble (Marble A, mass: 0.05 kg) at a smaller marble (Marble B, mass: 0.03 kg) that is sitting still. Marble A was initially moving at a velocity of 0.6 m/s, but after the collision it has a velocity of - 0.2 m/s.

How can a force change the motion of an object that is already moving?

A car speeds up from 5 m/s to 12 m/s in 20 seconds. What is the acceleration of the car?

You pull a simple pendulum of length 0.225m to the side through an angle of 3.50∘ and release it. Part A How much time does it take the pendulum bob to reach its highest speed? Take free fall acceleration to be 9.80 m/s^2.

What is the velocity of a wave having a frequency of 25 Hz and a wavelength of 10m

What is the force on a 1-kg ball that is falling freely due to the pull of gravity

Which would react chemically by forming an ionic bond? A. 2 chlorine atoms with 7 valence electrons each B. 1 neon atom with 8 valence electrons and 1 lithium atom with 1 valence electron C.

Which of these are considered an oxidizing mutagenic agent? x-rays benzopyrene gamma rays