If the magnetic field strength is found to be zero between the two wires at a distance of 1.9 cm from the first wire, what is the magnitude of the current in the second wire

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

When an object is heated it contracts. a. true b. false

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight