Ablu-ray disk spins up from rest to an angular speed of about 10,000 revolutions per minute. if it
can do this spin-up process in 2 seconds, what is its angular acceleration
a. 2 rev/s^2
b. 5,000 rev/s^2
c. 333 rev/s^2
d. 83 rev/s^2
e. 167 rev/s^2

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th