Aflat, circular loop has 20 turns. the radius of the loop is 10.0 cm and the current through the wire is 0.50 a. determine the magnitute of magnetic field at the center of the loop.

Aman tries to push a box of mass 4 kg with a force of 5 n but the box remains stationary if the coefficient of static friction is 0.45, what is the value of the maximum force of friction?

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

What do you think car designers do if the damage caused by a crash test is too severe?