Initially sliding with a speed of 2.2m/s, a 1.8kg block collides with a spring and compresses it 0.31m before coming to rest. What is the force constant of the spring?

Kendra wants to use similes to describe the reflection and absorption of waves. Which pair of similes best fit? Reflection is like bouncing a tennis ball, and absorption is like water soaking into a paper towel.

A batter swings at a baseball. The action force is the bat hitting the ball with a force of 5N. The reaction force, however, cannot be determined.

Who was the powerful and ruthless leader of the soviet union from 1929-1953 who also ordered the great purge in which he had his real and imagined enemies arrested?

For a fixed amount of an ideal gas, an increase in the average speed of the gas molecules could cause which of the following quantities to increase? a. Temperature onlyb. Volume onlyc. Pressure onlyd. Volume and Pressure onlye.

Without the Law of Universal Gravitation there would be no stars planets stars or planets energy

Determina la fuerza que se necesita aplicar a un camión de 2800 Kg para que éste acelere 6.5 m/s2

A light ray strikes a plane mirror at an angle of 20 degrees to the normal. What is the angle of the reflected light ray to the normal? 40 degrees 70 degrees 0 degrees 20 degrees

a gas-like mixture with no definite volume or shape that is made up of positively and negatively charged particles is a

The energy a glass has as you are holding it still above a table is

What are the streams of glowing gas that shoot out from the sun called? Corona Prominences Solar flares Sunspots