A bicycle and its rider have a combined mass of 80 kg and a speed of 6 m/s. What is the magnitude of the average force needed to bring the bicycle and its rider to a stop in 4 seconds?

Which atomic model is missing from this set?

A golf ball of mass m = 0.21 kg is dropped from a height h. It interacts with the floor for t = 0.115 s, and applies a force of F = 16.5 N to the floor when it elastically collides with it.

Identify the elements in the compound NaCl.

A body starts initially at rest, starts moving with a constant acceleration of 2m/s2. Calculate the velocity acquired and the distance travelled in 5 s.

a train traveling at 30m/s comes to a complete stop in 20 sec. how far did the train go during the deceleration

If a bar magnet is broken into two pieces, each of the resulting pieces

Two passengers leave the airport at Kansas City, Missouri. One flies to Los Angeles, California, in 3.5 hr and the other flies in the opposite direction to New York City in 3.5 hr.

What is the term for the basic unit of electric current? The basic unit of electric current is the.

When a sailboat overtakes a powerboat, which vessel is the stand-on vessel?

Both matter and energy can eneter and exit which of the following systems? A. open only B. both open and closed C. isolated only D. both closed and isolated