A rectangular coil of wire consisting of ten loops, each with length 0.20 m and width 0.30 m, lies in the xyplane. If the coil carries a current of 2.0 A, what is the torque exerted by a magnetic fi eld of magnitude 0.010 T directed at an angle of 30.0 with respect to the positive z-axis? (a) 1.2 _ 10_2 N _ m (b) 2.4 _ 10_2 N _ m (c) 6.0 _ 10_3 N _ m (d) 4.0 _ 10_3 N _ m (e) 3.0 _ 10_3 N _ m
Thursday, September 15, 2016 7 Ideas Chapter 9: Motion Motion:- 1- Uniform Velocity (Cruise control) 2- Relative Velocity 3-Acceleration -Uniform Velocity :- The change in an object’s distance divided by the change in time. (delta)d = V * (delta)t (delta)t = (delta)d / V V= (delta)d / (delta)t -Relative velocity :- Velocity of an object added to the velocity of a frame. -Simultaneous motion :- When an object moves 2 dimensions (directions) at the same time. -Frame :- ‘Box” in which the object moves. ____________________________________________________ Chapter 10: Acceleration -Acceleration :- The change in an object’s velocity divided by the change in time a= (delta)v / (delta)t Acceleration due to Gravity on Earth 1
