A circular coil with a diameter of 100 mm, which is at the same plane as the one of the sheet, conducts a current of 6A counterclockwise. The coil is immersed in a material of relative permeability of 2.5. Find the magnitude of the magnetic induction,
a) at the center of the coil and
b) 3 cm away in the center axis.

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z