Which of the following are properties of acids? check all that apply. a. react with certain metals to produce hydrogen gas b. react with other acids to produce salt and water c. taste sour d. corrosive

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

This is the substance(s) formed in a chemical reaction.

Patricia is trying to compare the average rainfall of new york to that of arizona. a comparison between these two states for the months of july through september would best be measured in