Calculate the torque produced by a motor that has 500 windings across a 30cm diameter rotating core. The core is 0.6 M long inside a 50 tesla magnetic field. The resistance of the wire is 30 ohms when 12 volts are applied.

Depending on how the continental plates move it can cause a continental scale shift.

Answer:   [a]:   "slate" .

Answermake them get very hot and over time wear them out;

Distance covered = speed x timethe distance traveled going against the stream = distance traveled with the stream.therefore it is the speed and the time that are the variables.as he travels the same distance both ways, speed x time is the same for each way.going upstream his speed is 4 kph; going downstream his speed is 6 kph.therefore we have two simultaneous equations: time upstream x 4 = time downstream x 6time upstream + time downstream = 60 minutestherefore we have the equation: time upstream = 6/10 hour, time downstream therefore = 4/10 hour.distance traveled at 4km/hr in 6/10 hour = 24/10 = 2.4km.check: distance traveled at 6km/hr in 4/10 hour = 24/10 = 2.4km.