1) A tire pump has a piston with area 0.50 in². If a person exerts a force of 32 lb on the piston while inflating a tire, what pressure does this produce on the air in the pump in psi?

2) A metal brick has a volume of 25 in³. What would its weight be if it were made of pure gold?

[The weight density of pure gold is 1,200 lb/ft³.]

3) When a spigot is open, water emerges from a garden hose with a speed of 27 in/s. If the garden hose has an opening with a cross-sectional area of 0.78 in², what would be the speed of the water as it emerges from the hose if the area of the opening were reduced to 0.45 in²?

4) During a thunderstorm a family sees a bolt of lightning. Exactly 3.00 seconds later they hear the thunder clap. If the speed of sound is 345 m/s, how far away did the lightning strike?

5) The sound wave velocity in air is 330 m/s. What is the air temperature?