Two circular loops of wire, each containing a single turn, have the same radius of 5.1 cm and a common center. The planes of the loops are perpendicular. Each carries a current of 1.5 A. What is the magnitude of the net magnetic field at the common center

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s. assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.