A person standing on Earth drops a ball. At the same time, a person standing at the bottom of a spaceship accelerating at 9.8 m/s2, in the absence of any significant fields in deep space, drops a ball. What would these people observe? Please help!

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

To a of 4 x hz is 1. 0. mm nm nm

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel