A bike rider pedals with constant acceleration to reach a velocity of 7.5 (vf) m/s over a time of 4.5 s (t). during the period of acceleration, the bike's displacement is 19 m (d). what was the initial velocity of the bike?

Two rock climbers, bill and karen, use safety ropes of similar length. karen's rope is more elastic, called a dynamic rope by climbers. bill has a static rope, not recommended for safety purposes in pro climbing. karen falls freely about 2.

What is the area of soft cartilage where bone growth occurs

When two or more different capacitors are connected in parallel across a potential source (battery), which of the following statements must be true? (There could be more than one correct choice.

Gravity is greater when there is Select one: A. equal mass and more distance between two objects. B. less mass and less distance between two objects. C. more mass and less distance between two objects. D. more mass and more distance between objects.

In shot put, the shot is put (thrown) from above the athlete's shoulder level. Is the launch angle that produces the greatest range 45°, less than 45°, or greater than 45°?

A 113 kg man sits on the stern of a 6.3 m long boat. The prow of the boat touches the pier, but the boat isn't tied. The man notices his mistake, stands up and walks to the boat's prow, but by the time he reaches the prow, it's moved 3.

What os the term for the smallest bit into which chemical substance can be divided and still have the properties of that substance A : eletron B:molecule c:atom D:ion

How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57*10-21 newtons?

If you could see the electric field coming off a proton you would notice that electric field lines are

We wrap a light, nonstretching cable around a 10.0 kg kg solid cylinder with diameter of 38.0 cm cm. The cylinder rotates with negligible friction about a stationary horizontal axis. We tie the free end of the cable to a 14.