Question1
Imagine you are on a planet similar to Earth where an acceleration of gravity is approximately 10 m/s2.
The pulley is massless and frictionless. A massless inextensible string is attached to masses. The objects are initially held at rest. If a third object with a mass of 18 kg is hung on one of the 36 kg objects and the objects are released, the magnitude of the acceleration a of the 18 kg object is most nearly.
Question2
At a particular instant of time, a light beam travelling in the positive direction has an electric field given by E= (6.22N/C) x + (2.87N/C)y.The magnetic field in the beam has a magnitude of at the same time. Note down B in terms of unit vectors.