Acamera flash, which throws a parallel beam of light, has a mirror behind the light bulb. what kind of mirror is it likely to be?

While you are driving in the lane next to the curb on a multi-lane road the car on your left suddenly moves toward you lane. they are about toy crash into your front fender. you

Acar going 10 m/s starts accelerating at a rate of 3 m/s2 for 4 seconds calculate the final velocity of the car

Two light bulbs each having a resistance of 3ohms are connected in series to a battery marked 12 volts. how much current will flow in the circuit