A Car and Driver are traveling at a velocity of 15 milliseconds the car rear ends truck in front of them and comes to a complete stop the driver heads with a mass of 4 kilograms continuing moving at 15 milliseconds the airbag is deployed and brings to add to complete stop at 0.08 seconds what is the net force acting on the driver's head?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?