Acceleration involves a change in speed or what?

A car, initially at rest, travels 20 m in 4 s along a straight line with constant acceleration. the acceleration of the car is:

Can more than two waves can interfere in a given medium

Lava blown out of a volcano in explosive eruption is called pumice. True False

Why do biologists use classification?

Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 64.7 N, Jill pulls with 61.5 N in the northeast direction, and Jane pulls to the southeast with 171 N.

Is it legal in Florida for a math teacher forces the kids to do push ups?

Acceleration is best defined as the rate of change of blank of an object

Zirconium has an atomic number of 40. How many neutrons are there in an isotope of zirconium-92?

If a glass is knocked off of a table that is 1.4m tall, how long does it take for the glass to hit the ground?

Imagine riding On a merry-go-round at the center. As you walk to the outer edge, the merry-go-round slows in order to conserve angular momentum. True or false?