4. the box is pushed 20.0 m up a 30.0° ramp (same surface as o
0 20.0 m up a 30.0° ramp (same surface as before) at a constant speed of 4.00 m/s. the applied force
is parallel to the surface of the ramp.
a. how much net force is exerted on the box?

b. how much force is applied to the box to keep it moving?

Aloop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. a loop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. moving the loop outside of the magnetic field region. spin the loop such that its axis does not consistently line up with the magnetic field direction. change the magnitude of the magnetic field. change the diameter of the loop