Two bags, A and B were found in the labarotory. Bag A contained 20kilograms of cotton while Bag B contained 5 kilograms of sand. Which of the two bags has a higher density? pls guys explain

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.

During the past 150 years in the united states, how did energy consumption compare to population growth