Which could be an example of an unbalanced force? A. A plate sitting on a dining room table.

B. Earth orbiting the Sun

C. A ball at the top of a hill that is not moving.

D. A baseball that has been thrown to home plate.

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.

1which body contains the majority of the mass in the solar system earth jupiter the moon the sun 2 what keeps the objects in the solar system such as planets orbiting around the sun the force of gravity the galaxy exerts on all objects within it including the solar system the great distance between the sun and the planets the sun's nuclear fusion which acts on each object the gravitational force between the sun and each object in the solar system