A flute player hears four beats per second when she compares her note to an 880 Hz tuning fork (note A). She can match the frequ
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The intensity of sunlight on the Earth is about 1367 W/m^2. The earth has to be 131 the distance farther away
This is further explained below.
<h3>What is the distance?</h3>Generally, bet the power emitted by the sun is P. so. at the distance of earth intensely where is the distance of the earth from the sun. were
Therefore
p=4
let at distance is a positive number) the intensity is the same as the intensity at 10m away from a 100w bulb. So.
In conclusion,
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Answer:
Explanation:
<u>Displacement Vector</u>
The displacement, as every vector, has a magnitude r and a direction angle θ measured from the positive x-axis.
If we know the x-y components of the displacement, the magnitude and angle can be calculated by the equations:
The coordinates of the given vector are x=-12 m, y=21 m, thus:
Since the vector lies in the second quadrant, we add 180° to find the correct direction: