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wlad13 [49]
3 years ago
8

How to find net force

Physics
2 answers:
djverab [1.8K]3 years ago
8 0
Overall force acting on an object

nexus9112 [7]3 years ago
3 0
 net force is mass multiplied by acceleration. hope this helps
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Eye at the lowest radiated power of 1,2 x10 x (- 17) W. Determine how many photons of light with a wavelength of 500nm fall on t
mars1129 [50]

Answer:

\frac{n}{t} = 30\ photons/s

Explanation:

The radiated power can be given in terms of the wavelength as follows:

Rasiated\ Power = \frac{nE}{t} = \frac{nhc}{\lambda t}

where,

Radiated Power = 1.2 x 10⁻¹⁷ W

n = no. of photons = ?

h = plank's constant = 6.625 x 10⁻³⁴ J.s

c = speed of light = 3 x 10⁸ m/s

λ = wavelength = 500 nm = 5 x 10⁻⁷ m

t = time

Therefore,

1.2\ x\ 10^{-17}\ W = \frac{n(6.625\ x\ 10^{-34}\ J.s)(3\ x\ 10^8\ m/s)}{(5\ x\ 10^{-7}\ m)(t) }\\\\\frac{n}{t} = \frac{1.2\ x\ 10^{-17}\ W}{3.975\ x\ 10^{-19}\ J}\\\\\frac{n}{t} = 30\ photons/s

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Which of the following best why we see horizontal "stripes" in photographs of Jupiter and Saturn?
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