A student connects a circuit with a cell, an ammeter, and a
buzzer and listens to the buzzer.
She adds another cell.

Describe and explain what
happens if she turns one of the
cells around
( this is a year 8 question)

Which articulations allow for greatest range of motion?

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

Why does gravity have a lesser than grater effect on higher altitudes?