A square loop and a circular loop are each made from the same length of wire. Each loop carries the same amount of current. The loops are placed in the same uniform magnetic field. What is the ratio of the maximum torque on the square loop to the maximum torque on the circular loop? Question 2 options: π/4 2/π None of the other answers are correct. 4/π π/2

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.