You are on rollerblades on top of a small hill. your potential energy is equal to 1000 joules. the last time you checked your mass was 60 kg. what is your weight in newtons? what is the height of the hill? what will you be used to be at the bottom of the hill?

15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)