How long does it take a person moving at 3.0 m/s down a 200.0 m long moving sidewalk to reach the end of the sidewalk? What formula must be used?

Measurement is the use of numbers according to a standard. a. True b. False

1. Visible light has a higher frequency than infrared light. True / False? 2. Each color of visible light corresponds to a different wavelength of electromagnetic rays. True / False? 3. Ultraviolet light has a higher frequency than visible light.

Chemical properties of an acid include ... A. Taste sour, increases the concentration of hydrogen ions when added to water, frequently burn nose when smelt, and forms salt and water when added to a base. B.

Select the sentence that best describes why copper and some other metals are good conductors.

Why is carbon is considered tetravalent? Why is carbon is considered tetravalent? Since it has four electrons in its outermost orbital, it needs four more electrons to complete its octet.

Which of the following is not an assumption that scientists must make about the natural world

The density of uranium is 18.8 g/cm3. part a what is this value in kilograms per cubic meter?

What name is given to the variable we plot on the x-axis? A. The dependent variable B. The independent variable c. The linear variable D. The inverse variable

What force is required to accelerate a body with the mass of 15 kilograms at a rate of 8m/s2?

Indicate whether the statement is true or false. A scientific fact is something that is absolute and unchanging.