Aperson holds a rifle horizontally and fires at a target. the bullet leaves the muzzle of the rifle with a velocity of 460 m/s. two seconds later the person hears the bullet strike the target.
if the speed of sound in air is 340 m/s, calculate the distance travelled from the bullet to the target.

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp

Name the non metal condut electricity