Santa doesn't want to push a 25.0 kg wooden box across a wooden floor with a uk of 0.20 at
a constant speed of 1.0 m/s. so he asks the same guy in a blue polo shirt to move the box for
him. how much force does the " guy" have to exert on the box?

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

If a balloon is taken outside on a very cold day, what will occur?