A cyclist accelerates at a rate of 7.0 meters per second squared. How long will it take for him to reach a speed of 18 meters per second

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

You can decrease the resistance of a length of wire by

Atoms containing radioactive nuclei are called