Q1. A space station, in the form of a wheel 133 m in diameter, rotates to provide an "artificial gravity" of 2.20 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of the wheel's rotation in revolutions per minute that will produce this effect.
Q2. Protons move the circle of radius 5, 10 cm in a 0,635 T magnetic field. a) What value of electric field could make their path straight? b) What direction should the electric field point?
Draw a vector diagram.