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?

Judge why a steel block sinks but a steel ship floats. You can assume the density of steel is the same in each scenario.

What is matter? Give a grade 10/11/12 understanding.

A 120 volt refrigerator uses 650 watts. Calculate how much work is done by the refrigerator in one hour. A) 9.7 J B) 39,000 J C) 2,300,000 J D) 4,100,000 J

Describe how the Catapult works?

What measures haven't worked?

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.