3. A student throws a calculator upward at 22 m/s. How far from the ground will the calculator be when it has half the speed it was thrown with? How much time did it take to reach this height?

Will you chech and finish these for me, because i am stumped with them.

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.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is