How much force is needed to accelerate an object of mass 90 kg at a rate of 1.2 m/s2? 0.013 n 75 n 108 n 1080 n

Two large, flat, horizontally oriented plates are parallel to each other, a distance d apart. half way betwween the two plates the electric field has magnitude e. if the separation of the plates is reduced to d/2 what is the magnitude of the electric field half way between the plates?

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

Decreased sensitivity to an unchanging stimulus is known as