Two containers (a and b) are in thermal contact with an environment at temperature t = 280 k. the two containers are connected by a tube that contains an ideal turbine (a mechanical device) and a valve. initially, the valve is closed. container a (volume va = 2 m3) is filled with n = 1.2 moles of an ideal monatomic gas, and container b (volume vb = 3.5 m3) is empty (vacuum). when the valve is opened, gas flows between a and b, and the turbine is used to generate electricity. what is the maximum amount of work than can be done on the turbine as the gas reaches equilibrium?

An input force of 7 n is applied to a machine with a mechanical advantage of 1.75. what is the maximum the machine could lift? 12.25 n7n7.25 n26.2 n

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n