in 4 seconds. Calculate the acceleration. We sometimes refer to a moving object as having a 'constant acceleration' or a 'uniform acceleration'. A constant or uniform acceleration means that the ...

and with the rotor rotating relative to that frame at a constant rate of ω 2. The goal of the problem is to calculate the angular acceleration of the rotor. The analysis for this is provided below.

Discovering the nature of dark energy may seem an academic exercise for cosmologists, but "nothing short of the fate of the universe hangs in the balance," The Associated Press said. If the standard ...