Use your calculator to determine (√7) to the third power to three significant figures in two ways.
(a) find √7 to four significant figures; then cube this number and round to three significant figures.
(b) find √7 to three significant figures; then cube this number and round to three significant figures.
which answer is more accurate?
explain.

Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward