Select the correct answer. The direct free kick signal is made by:
A The arm extended straight out to the side
B. The wrists crossed overhead
OC. The knee bent and hand touching the heel
OD The arm raised straight in the air
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An object's buoyant force and weight mean the same thing.a. trueb. false

Explain why electric current cannot exist if a current doesn't have a voltage source.

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)