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Flauer [41]
2 years ago
9

A cyclist rides in a circle with speed 8.1 m/s. What is his centripetal acceleration if the circle has a radius of 27 m? A. 3.3

m/s^2 B. 2.4 m/s^2 C. 0.3 m/s^2 D. 1.8 m/s^2
Physics
1 answer:
GarryVolchara [31]2 years ago
5 0
The answer would be B. 2.4 

You're welcome.
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At rest, hydrogen has a spectral line at 116 nm. if this line is observed at 107 nm for the star sirius, how fast is sirius movi
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2.3275862×10¹²km/s fast is sirius moving in km/s.

<h3>Briefing:</h3>

Hydrogen has a spectral line at = 116nm=116×10⁻⁹m

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Now, from the Hubble's law

V=(\Delta \lambda / \lambda)×C

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A waveform signal's wavelength, which is the distance between two identical locations (adjacent crests) in the succeeding cycles, determines whether it is sent through space or via a wire. Typically, in wireless systems, this length is specified in meters (m), centimeters (cm), or millimeters (mm).

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which means the wind slows the boat down to a velocity of 0.75 m/s westward.

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