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tia_tia [17]
3 years ago
11

It is now virtually certain that the dominant cause of recent ice ages is

Physics
1 answer:
Anarel [89]3 years ago
5 0
<span>Variations in Earth-Sun orbital relationships.</span>
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You are pulling a child in a wagon. The rope handle is inclined upward at a 60∘ angle. The tension in the handle is 20 N.How muc
ahrayia [7]

Work is equal to the force applied times the displacement. Since you pull the wagon at constant speed this means that there is no acceleration on the wagon as it does not change speed. F=ma. Since a=0, F=0. Therefore no work has been done in this situation

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3 years ago
Which image shows an inclined plane?
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The. 3rd one the ram of the bus
5 0
3 years ago
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the refractive index of cooking oil is 1.47, and the refractive index of water is 1.33. A thick layer of cooking oil is floating
VARVARA [1.3K]
When light travels from a medium with higher refractive index to a medium with lower refractive index, there is a critical angle after which all the light is reflected (so, there is no refraction).

The value of this critical angle can be derived by Snell's law, and it is equal to
\theta_C = \arcsin ( \frac{n_2}{n_1} )
where n2 is the refractive index of the second medium and n1 is the refractive index of the first medium.

In our problem, n1=1.47 and n2=1.33, so the critical angle is
\theta_C = \arcsin( \frac{1.33}{1.47} )=\arcsin (0.91)=65^{\circ}
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3 years ago
A bond between a positively-charged particle and a negatively-charged particle is a(n) _______ bond.
weeeeeb [17]
The answer is an ionic bond.
6 0
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Which rf characteristic best determines the range of a 2.4 ghz ism signal?
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<span>The radio frequency characteristic that best determines the range of a 2.4 GHz ism signal is the wavelength.

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