An electron shoots straight up out of the ground going at 0.5 x 10^4 m/s at a location where there is a perfectly horizontal magnetic field that points north and has magnitude 3.5 T. What is the magnitude of the force experienced by the electron? Ignore gravity. Enter your answer in scientific notation format. For example, 0.00010 would be entered as 1.0e-4. As in this example, your number before the 'e' should be rounded to one decimal place. Do not put spaces in your number