Calculate the total resistance in a series circuit made up of resistances of 3ω, 4ω, and 5ω. 1.2 1.3 0.78

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter