Car a has a mass of 1.200 kg and is traveling at a rate of 22 km/hr. car b has a mass of 1200 kg and is traveling in the
same direction at 25 km/hr. which of the following statements is true?
both cars have the same momentum
car a has a greater momentum than car b.
car b has a greater momentum than car a

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.