A heat engine working according to Carnot cycle with 1 mole of air as a working fluid. The gas expands isothermally from 200 ° C, 500 Pa, 7.865 m to 393.25 Pa, 10 m ?. Then it expands adiabatically to 222.915 Pa and 15 m³. After that it compresses isothermally to a particular values ​​of pressure and volume. And finally it returns to its initial state adiabatically. Take Cp / Cy for air as 1.4, calculate the heat absorbed, heat rejected, net work done and the engine efficiency.​

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?

Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?

How can waves travel through ground?