Answer:
233.1 miles per hours
Explanation:
Speed: This is defined as the ratio of distance to time. The S.I unit of speed is m/s. speed is a vector quantity because it can only be represented by magnitude only. Mathematically, speed can be expressed as,
S = d/t ....................... Equation 1
Where S = speed of the runner, d = distance covered, t = time.
Given: d = 100 meter , t = 9.580 seconds
Conversion:
If, 1 meter = 0.00062 miles
Then, 100 meters = (0.00062×100) miles = 0.62 miles.
Also
If, 3600 s = 1 h
Then, 9.580 s = (1×9.580)/3600 = 0.00266 hours.
Substitute into equation 1
S = 0.62/0.00266
S = 233.1 miles per hours.
Hence the runner speed is 233.1 miles per hours
By gravity as well as electrostatic and magnetic attraction and repulsion
Example forces being exerted by one object on another without them being in contact with each other
Answer:
Wavelength of electromagnetic wave will be 5.281 m
Explanation:
We have given frequency of electromagnetic wave is 
Velocity of electromagnetic wave is 
We have to fond the wavelength of the electromagnetic wave
We know that velocity of electromagnetic eave is given by 
, here 
is wavelength and f is frequency
So 
Wavelength of electromagnetic wave will be 5.281 m
While the answer is that it does, it transmits light VERY poorly. Most of the light bounces off it and the rest is refracted into the ocean. This is why you can't see much that is far away from you in the ocean unlike if you're just on land.
It's not the electricity. It's how we produce it.
Solar panels, wind turbines, nuclear reactors, and water wheels can be used to produce electricity with no effect on climate.
Coal, oil, wood, gasoline, natural gas, household trash, and tall dry grass can be burned to boil water to make steam to turn a generator and make electricity. When everybody does that, the burning releases enough Carbon Dioxide into the atmosphere to futz up the Earth's climates. That's exactly what we have done for the past 200 years.
