2. Joe runs up the stadium steps as an athletic drill. There are 50 steps and each one is 0.30 meters high and 0.50 meters deep. If Joe has a mass of 95 kg and runs the steps in 30 seconds, how much work has he done and how much power has he dissipated?

What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )

This is really important 1.which of the following prefixes represents the largest value? (2 points)gigahectorkilomilli2.which of the following types of graphs is best for plotting the mean, median, and mode of data? (2 points)bar graphbox-and-whiskercircle graphstem-and-leaf

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?