Whether a person needs a sports drink during exercise depends on a. the type of exercise being performed. b. what time of day the person is working out. c. the amount that he or she sweats. d. whether the person ate breakfast that day.

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute

Which quantities are scalars? choose all that apply a. distance b. speed c. acceleration d. velocity

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =