Question 3 A craned moved a 200 kg hot tub from the ground to the top of the hotel, 10 stories above the ground, in 80 seconds. If the crane used 200,000 J of energy, how
much power did the crane need?

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

As the distance from a magnet increases, what happens to the magnet force?