Suppose you press your physics book against a wall hard enough to keep it from moving.
does the friction force on the book point into the wall, out of the wall, up, down, or is there no friction force?

An uplifted block of rock between two normal faults

Akg a of 55 m at an of 11 ? . if is at 98 km/h,be ?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?