Acompass originally points north; at this location the horizontal component of the earth's magnetic field has a magnitude of 2e-5 t. a bar magnet is aligned east-west, pointing at the center of the compass. when the center of the magnet is 0.26 m from the center of the compass, the compass deflects 70 degrees. what is the magnetic dipole moment of the bar magnet?

On his honeymoon, james joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on mount blanc. what maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? the specific heat of water is 4186 j/kg ∙ k. a)0.064 c° b)0.053 c° c)0.071 c° d)0.047 c°