A crowbar with length 200 cm is used to lift a load of 600N. If the distance between fulcrum and load is 1m. Calculate efficiency.​

What are the theoretical properties of a gas at a temperature of 0 kelvin?

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.