A boy ties a stone to the end of a string which he then whirles above his head round a circular path of radius 15cm . If the stone makes 20 oscillation in 10 seconds, calculate the angular and linear speeds of the stone.

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

no sign of dia of fuel cell

connect the batteries in series and hope

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;