A bulldozer does 45,000 joules of work to push a boulder a distance of 30 meters.
1 answer:
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The radio waves are electromagnetic wave, so it travels with velocity of light i.e .
We can use the relation between frequency, wavelength and speed as
Here c is speed of light, is wavelength and f is frequency and its value is given 99.90 FM, it is actually in megahertz (i.e 99.90 MHz).
Therefore,
.
Thus, the broadcast wavelength of the given radio station is 3.003 m.
Answer:
The hottest temperature is
Explanation:
From the question we are given
Generally converting to Fahrenheit
=>
=>
Converting to Fahrenheit
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=>
Now comparing the temperature in Fahrenheit we see that is the hottest