Acoil of wire with 100. circular turns of radius 8.00 cm is in a uniform magnetic field along the axis of the coil. the resistance is 40.0 o. at what rate, in teslas per second, must the magnetic field be changing to induce a current of 0.150 a in the coil?
1.59 t/s
2.98 t/s
6.00 t/s
9.38 t/s

Ain is , is 's of ? 0.62 0.79 1.27 1.50

Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.

Amerry-go-round of radius r, shown in the figure, is rotating at constant angular speed. the friction in its bearings is so small that it can be ignored. a sandbag of mass m is dropped onto the merry-go-round, at a position designated by r. the sandbag does not slip or roll upon contact with the merry-go-round. how would you rank the following different combinations of m and r on the basis of the angular speed of the merry-go-round after the sandbag "sticks" to the merry-go-round from largest to smallest. a) m = 10kg, r = 0.25r b) m = 20kg, r = 0.25r c) m = 10kg, r = 0.50r d) m = 10kg, r = 1.0r e) m = 15kg, r = 0.75r f) m = 40kg, r = 0.25r