Explanation:
The vertical displacement of the wave is measured from the
equilibrium to the crest and is called the frequency.
crest to the trough and is called the amplitude.
trough to the trough and is called the wavelength.
equilibrium to the crest and is called the amplitude.
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Answer:
4 times greater
Explanation:
<u>Step 1:</u> Calculate light-collecting area of a 20-meter telescope (A₁) by using area of a circle.
Area of circle = π*r² =
Where d is the diameter of the circle = 20-m
A₁ = 314.2 m²
<u>Step 2:</u> Calculate light-collecting area of a 10-meter Keck telescope (A₂)
Where d is the diameter of the circle = 10-m
A₂ = 78.55 m²
<u>Step 3</u>: divide A₁ by A₂
= 4
Therefor, the 20-meter telescope light-collecting area would be 4 times greater than that of the 10-meter Keck telescope.
<u>Answer</u>:
316.67 Hz
<u>Explanation</u>:
Given:
Wave velocity ( v ) = 95 m / sec
wavelength ( λ ) = 0.3 m
We have to calculate Frequency ( f ) :
We know:
v = λ / t [ f = 1 / t ]
v = λ f
= > f = v / λ
Putting values here we get:
= > f = 95 / 0.3 Hz
= > f = 950 / 3 Hz
= > f = 316.67 Hz
Hence, frequency of sound is 316.67 Hz.
Answer:
21 miles
Explanation:
3 miles an hour for 7 hours
Its simply 7m*3m/hr=21 miles
<span>Suspension, chemistry definition is a heterogenous
mixture, meaning one substance is different from another, when mixed, either of
the substance (particularly the solid one), do not mix evenly. It could clearly
be seen when one mixes a solution in a suspension state because it forms a
cloudy solution, Best example of this is mud. In mud, though there is a mixture
of solid and liquid, there is still evident traces of solid particles that do
not mix evenly in the solution.</span>
