Suppose a cylindrical habitat in space 6.80 km in diameter and 24 km long has been proposed. such a habitat would have cities, land, and lakes on the inside surface and air and clouds in the center. this would all be held in place by rotation of the cylinder about its long axis. how fast would the cylinder have to rotate to imitate the earth's gravitational field at the walls of the cylinder? answer in rad/s.

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

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?