Arocket burns fuel at a rate of 249 kg/s and exhausts the gas at a relative speed of 2 km/s. find the thrust of the rocket. answer in units of mn.

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.

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

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?