A marshmallow in a vacuum becomes

A) larger.
B) smaller.
C) does not change.

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.

Derive the lens makers formula for convex les?

Why does an object have a different weight o the moon than it does on earth