Sanic the hedgehog is running after Dr. Eggmon with a speed, v. In order to catch up to Dr. Eggmon, Sanic quadruples his running speed (his new speed is 4*v). What is Sanic's new kinetic energy after he speeds up? Let KE be Sanic's kinetic energy when he's running at a speed of v. Ⓒ16 KE 4 KE 2 KE KE

A smal, dosely wound col has N tuns, area A, and resistance R. The col is intaly in a unform magnetic feld that has magnitude B and a drection perpendicular to the plane of the loop. The collisthen rapidly pulled out of the field so that the flux through the collis reduced to zero in time At. Part A What are the magnitude of the average emf E, and average curent I, induced in the col? Express your answer in terms of the variables N, A, R, B. and At. AZ + * O O ? E, Iy= • Part B The total charge Qthat fows though the col is given by Q= IavAt. Derive an expression for Q in terms of N, A, B, and R Note that Q does not depend on At. Express your answer in terms of the variables N, A, R, and B. ? Q=

A.it experiences a net tangential force  B.its momentum points toward the center of the loop Please tell me if it's correct or wrong