Determine the force per meter on a lightning bolt at the equator that carries 20 000 a and is perpendicular to the earth’s magnetic field, 3x10-5 t. what is the direction of the force if the current is straight up and the earth’s field direction is due north which is parallel to the ground.

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)