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Mars2501 [29]
3 years ago
12

If it actually hits the ground with a speed of 8.50 m/s , what is the magnitude of the average force of air resistance exerted o

n it?
Physics
1 answer:
kkurt [141]3 years ago
8 0
Well it will probably never hit the ground try to look over your answer and go from there I hope I helped
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the electrostatic force between two objects is 40N. if the charge of one object is cut in half, and the distance is doubled, wha
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Answer:

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F2 = K Q1 / 2 * Q2 / (2 R1)^2

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Choose the word that best completes each sentence.
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1.) Tropisms

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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
Citrus2011 [14]

2.3275862×10¹²km/s fast is sirius moving in km/s.

<h3>Briefing:</h3>

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

Line is observed at = 107 nm=107×10⁻⁹m

Now, from the Hubble's law

V=(\Delta \lambda / \lambda)×C

Where,

v is the velocity

Δλ = Change in wavelength = 116 - 107= 9nm=9×10⁻⁹m

λ = Actual wavelength=116nm=116×10⁻⁹m

C is the speed of the light=3×10⁸m/s

on substituting the respective values, we get

V=(9/116)×3×10⁸=23275862.069×10⁵m/s

V=2.3275862×10¹²km/s.

<h3>What is the wavelength?</h3>

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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