Which of the following is the least reliable source of background information for a scientific project?

general Internet site

government Internet site

library reserve section

scientific journal

What is gravity's role in friction

What does work depend on in scientific terms?

Sustained exercise can increase the blood flow rate of the heart by a factor of five with only a modest increase in blood pressure. This is a large change in flow.

If the ball passes out of the field across the assistant referees and of a touchline and immediately returns to the field and play continues the assistant referee should signal by doing which of the following

One of the harmonics of a column of air in a tube that is open at one end and closed at the other has a frequency of 448 Hz, and the next higher harmonic has a frequency of 576 Hz. What is the fundamental frequency of the air column in this tube? a.

What did you notice about crossing two heterozygous genotype?

A toll booth on a turnpike is open from 8:00 AM until midnight. Vehicles start arriving at 7:45 AM at a uniform rate of 6 veh/min. At 8:15 AM the rate drops to 2 veh/min.

A tornado lifts a truck 252 m above the ground. As the storm continues, the tornado throws the truck horizontally. It lands 560 m away from where it was picked up.

The force of attraction between 2 objects is called gravity. Why do you think that an object, like your notebook, pulled towards you? Explain your reasoning. I don't need the answer I just don't understand what this question is asking.

Two planes leave wichita at noon. One planes flies east 30m/h faster than the other plane, flying east at what time will they be 1200 mi apart?