The human body is 65% oxygen by mass. If a person has a mass of 75.0 kg, what is the mass oxygen in his body?

Conductors have ___ resistance.

The total momentum of a flock of identical birds could be zero only if the birds are? a) taking off from the ground. b) flying in the same direction. c) flying in different directions. d) very tired and coming down to rest

What do multimillion-dollar sponsorships of famous athletes symbolize? a) globalization b) leadership c) commercialization d) sportsmanship

An engine flywheel initially rotates counterclockwise at 5.85 rotations/s. Then, during 21.3 s, its rotation rate changes to 3.31 rotations/s clockwise.

A small pool filled only with water will require an additional 300 gallons of water in order to be filled to 80% of its capacity.

Which of these is the best reason for proper nutrition? A. To ensure that you will be skinny B. To protect yourself against certain diseases C. To improve your intelligence D. To ensure that you will get good grades

And object has a mass of 15g it has a volume of 7.5ml. find the density of the object.

I need this answered quickly. is the branch of science for naming and classifying organisms based on their natural relationships? A-physics B-taxonomy C-genetics D-biology

For a fixed amount of gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas?

A 500-kilogram sports car accelerates uni- formly from rest, reaching a speed of 30 me- ters per second in 6 seconds. What distance has the car traveled during the 6 seconds?