Thinking about an analogue clock, calculate the angular displacement in revolutions, radians and degrees for the following: • A second hand after three minutes An hour hand after 20 minutes The minute hand as it moves from 9.15 to 12.45.

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

The radius of an atom is closest in size to a

Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal