Which rule(s) is used for combining velocities? A. Scalar rules

B. Vector rules

C. Equilibrium rule

Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?

Name two kinds of practical electric pumps.

Could we see a galaxy that is 20 billion light-years away?