Q1. A traveller pulls on a suitcase strap at an angle of 35° above the horizontal. If 424 J of work is done by the strap while moving the suitcase a horizontal distance of 17.0 m what is the tension in the strap? Give the answer in SI units.
Q2. If the light from the spotlight strikes the mirror at an angle to the normal, what angle to the normal would you expect for the reflected rays?
Q3. An emf is induced in a conducting loop of wire 1.12 {rm m} long as its shape is changed from square to circular.
Find an average magnitude of the induced emf if the change in shape occurs in 4.24 {rm s} and local 0.120-{rm T} magnetic field is vertical to the plane of loop.