1. Assume that a 19 cm length of wire is carrying a current perpendicular to a 4.1 T magnetic field and
experiences a force of 7.6 mN. What is the current in the wire?*
(2 points)
3.4x10^-7 A
9.8x10^-3 A
1.0x10^-2 A
O 9.8 A

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.