2. What factor affects the brightness of the star? *
O
temperature or spectral type
O
the diameter

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. the area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?

If jason ii needs 15 kw of power at 300 volts to operate, what amperage of current must flow through the cable?