How much work is required for a 78 kg runner to accelerate from rest to a speed of 7.0 m/s

If the new moon happens on january 15th, what shape will it be on february 6th?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . 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?