A thin copper rod 1. 0 m long has a mass of 0. 050 kg and is in a magnetic field of 0. 10 t. What minimum current in the rod is needed in order for the magnetic force to balance the weight of the rod?.

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?