A body moving with SHM has an amplitude of 10cm an a frequency of 100Hz. Find i. the period of oscillation, ii. the acceleration at the maximum displacement, iii. the velocity at the centre of motion.

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil

What is friction? how does it affect the motion of an object?