1. An object is thrown to the east with a velocity of 25 m/s at the equator where the magnetic field strength is 1.5 x 10^-2 T straight north. It is noticed that the object is deflected upwards when it has a charge of 2.25 coulombs.

a). What is the magnetic force on the object? (2pts)

b). Is the object charged positive or negative? Support your answer with a diagram. (2pts)

c). What is the radius of the circular path? How long does it take for this object to finish one circular path? (The mass of the object is 1.6 x 10^-5kg) (2 pts)