a car travels 10 miles in 9.5 minutes, stops for 3 minutes and continues on covering a distance of 15 miles in 14 minutes. what is the average speed of the car

If the speed of a particle triples ,by what factor does its kinetic energy increase?

What is the scientific definition of energy that relates to work

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?