During a race, a runner runs at a speed of 6 m/s. 2 seconds later, she is running at a speed of 10 m/s. What is the runner's acceleration? Show your work.

A 1.0-kg ball on the end of a string is whirled at a constant speed of 2.0 m/s in a horizontal circle of radius 1.5 m. What is the work done by the centripetal force during one revolution

Does a good insulator prevent energy from getting through it, or slow its passage

Why does the burning of fossil fuels increase the greenhouse effect on earth? why does the burning of fossil fuels increase the greenhouse effect on earth? burning fuel warms the planet. burning releases carbon dioxide into the atmosphere.

How popsicles are made?

An asteroid orbits the Sun at an average distance of a = 4 AU. How long does it take to orbit the Sun? Use Kepler's Third Law (p2 = a3) to calculate the answer.

How long will it take a bike traveling at 5 meters per second to travel 25 meters south? A. 5 s B. 0.2 s C. 5 s south D. 0.2 s south

Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and one mass slides on a frictionless 30.0-degree incline. The vertically hanging mass is 6.

The coordinates 40 degrees north and 100 degrees east falls in what country?

Which type of radio waves have the highest frequency and are used in radar detection? microwaves x-rays waves infrared waves gamma waves

Which of the following are known to exist on the moon? select all that apply. a. air b. ice c. life d. basalt