Ahockey puck is struck so that it slides at a constant speed and strikes the far side of the rink, 58.2 m away. the shooter hears the sound of the puck after 1.9 seconds. the speed of sound is 340 m/s.
how fast was the puck moving?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.