If an athlete runs the triathlon of 10 km in 2 hours, what is her average speed in kilometers per hour?

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9

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?