The formula for speed is distance divided by time. if you plug in the numbers, you get 100 divided by 20. the answer is 5m/s
Answer:
a quantity expressing the magnitude of internal friction in a fluid, as measured by the force per unit area resisting uniform flow
Explanation:
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1) the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.
2) Several feet of concrete or a few inches of dense material (such as lead) are able to block radiation.<span>
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Answer:
c. 1/400 mm
Explanation:
The spacing between line is simply the inverse of the grating constant. Being the grating constant. The grating constant is just the number of lines per unit of length, and in this case its value is 400 lines/mm, therefore, the spacing d will be 1/400 mm.
Evaporation, or turning liquid to a gas, is first. Then it goes into the atmosphere and codensates, or turns back to a liquid, these water droplets form into clouds and come down as precipitation, rain, sleet, snow etc. Then the water cycle starts again
