What happens to the electric current if the number of loops of a wire doubles?
A
It stays the same.
B.
It doubles.
C.
It halves.
D.
It increases exponentially.

Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.

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

As you lift an 88 n box straight upward you produce a power of 72 w. what is the speed of the box?