1. A car's speedometer reads 20 m/s after accelerating, from a standing start, for 25s. What

was the magnitude of its acceleration?

What is the average speed of an object that travels at a constant speed of 50 m/s?

What is "frame of reference?"

Potencial energy is based on a object's A Gravity B Mass C Position D Kinetic

Imagine two artifical satellites with equal masses orbiting earth. One satellite is orbiting closer to earth than the other satellite.

A chemistry student mixes 5 grams of sodium chloride (NaCl) in 100 ml of water and stirs until all of the salt is dissolved. Once dissolved, the student measures the electrical conductivity of the solution.

Temperature and volume are directly or inversely

My Notes A basketball rolls across a classroom floor without slipping, with its center of mass moving at a certain speed. A block of ice of the same mass is set sliding across the floor with the same speed along a parallel line.

How does sound travel through waves?

Solve for real t: - 25=20t-5t^2

Contrast balanced and unbalanced forces.