Burning oil and coal adds to the atmosphere.

A) phosphorous

B) carbon dioxide

C) oxygen

In a total-immersion measurement of a woman's density, she is found to have a mass of 63 kg in air and an apparent mass of 0.0975 kg when completely submerged with lungs almost totally empty. A. What mass, in kg, of water does she displace? B.

What is not a living part of an ecosystem? fungus, sun, tree or fly?

Calculate theacceleration of a satellite that is orbiting Earth at an altitude of 500km. The Earth's radius is 6380 km.

Randomization in an experiment means that the experimental units or subjects are selected as a simple random sample from the whole population under study. A. True B. False

The speed of sound in air depends on temperature. a. True b. False

Which of the following statements concerning Howard Gardner's multiple intelligences is not correct? A. Gardner is not interested in assessing levels of intelligence. B. Gardner has based his theory on research in various areas of psychology. C.

The force of attraction between two oppositely charged pith balls is 5.3 * 10-6 newtons. If the charge on the two objects is 6.7 * 10-9 coulombs, what is the distance between the two charges? (k = 9.0 * 109 newton·meter2/coulombs2)

To describe velocity you need to know?

Mohammed made a chart to list examples and nonexamples of projectile motion. Which best completes the chart? a - a football thrown in the airb - a kite flying on a stringc - a golf ball rolling off a table d - water spraying from a fountain

Halley's Comet appears around the sun about once every 76 years. It passes through the part of its orbit nearest the sun in just a few months but then moves out to great distances and takes more than half a century for the rest of its orbit.