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Lunna [17]
3 years ago
5

How does the size of arctic foxes ears help to keep them warm in a cold environment

Physics
1 answer:
DochEvi [55]3 years ago
3 0
artic foxes have thick white fur to keep them warm and also for camouflage in the snow they have small ears to keep the snow out of their ears so that they can hear better they also have thick fur lining and a thick pad on their feet this stops the paws from getting cold and they have short legs so then the body weight can be spread making it easier for the animal to not sink in the snow in the summer the artic fox turns brown to help make the fox invisible when people are hunting in the long grass
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Read the scenario and solve these two problems. When traveling at top speed, a roller coaster train with a mass of 12,000 kg has
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First answer  5400000 
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denis23 [38]

Answer:

1.07004\times 10^{-7}\ m

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n_s = Refractive index of bubble = 1.33

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\lambda=\dfrac{2n_st}{m-\dfrac{1}{2}}

Wavelength is also given by

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m = 1 for minimum thickness

\dfrac{c}{f}=\dfrac{2n_st}{m-\dfrac{1}{2}}\\\Rightarrow t=\dfrac{m-\dfrac{1}{2}c}{2n_sf}\\\Rightarrow t=\dfrac{(1-\dfrac{1}{2})\times 3\times 10^8}{2\times 1.33\times 5.27\times 10^{14}}\\\Rightarrow t=1.07004\times 10^{-7}\ m

The minimum thickness is 1.07004\times 10^{-7}\ m

4 0
3 years ago
An objects speed is 2.40 m/s, and its momentum is 120.0 kg m/s. what is the mass of the object?
jarptica [38.1K]
Momentum is defined as 

P = m*v

where m is the mass of the object
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Ethical, electric, and technological, thermal?
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Answer:

-0.9 m/s²

Explanation:

Given:

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a = -0.9 m/s²

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4 years ago
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