The radius of earth is 6,370,000m. Express this measurement in km in scientific notation with the correct number of significant digits.

Which of the following could be considered a scientific statement? A Mark has the best smile in class. B. Nancy is the tallest person in the class. C. Blue is the best color. D. Desha is the funniest person in class.

Describe three forces that are acting in the situation described below A factory worker carries a box of nails. His shoe slips on a patch of oil on the ground, and he drops the box. The box opens, and the nails all fall to the floor.

What warm ups increase your body temperature. What other effects do they have on the body

A flat coil of wire has an area A, N turns, and a resistance R. It is situated in a magnetic field, such that the normal to the coil is parallel to the magnetic field.

The chart shows the solubility of different substances. Which statement is represented by the graph?

Na+/k+-atpase is considered to be an electrogenic pump because

If the period of a wave is 0.05 s, then what is its frequency?

Which of the following descibes the refraction of a wave?

A 590-kg rocket is at rest on the launch pad. what upward thrust force is needed to accelerate the rocket uniformly to an upward speed of 28 m/s in 3.3 s?

Is work being done when a hiker puts on a bag