Calculate the magnitude of the magnetic force exerted on a wire that is 20 mm long and carries a current of 4.0 a when it is suspended inside a solenoid at an angle of 45∘ to the magnetic field. the solenoid has 600 turns per meter of length and carries a current of 3.0 a .

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?