A car starts from rest and accelerates to a speed of 90 m/s in 16 seconds. What is the acceleration of the car?

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel

What is an electric motor? explain its operation. 2-3 sentence