3 years ago

Which of these would have the lowest albedo?

1 answer:

kati45 [8]3 years ago

3 0

All black surfaces is the correct answer

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3241004551 [841]

Here in this question as we can see there is no air friction so we can use the principle of energy conservation

$PE_i + KE_i = PE_f + KE_f$

$mgh_1 + \frac{1}{2}mv_i^2 = mgh_2 + \frac{1}{2}mv_f^2$

now here we know that

$h_1 = 2.75 m$

$v_i = 0$

$v_f = 5.23 m/s$

now plug in all values in above equation

$mg*2.75 + 0 = mgh + \frac{1}{2}m(5.23)^2$

divide whole equation by mass "m"

$9.8*2.75 = 9.8*h + \frac{1}{2}*27.35$

$9.8*h = 13.27$

$h = 1.35 m$

so height of the ball from ground will be 1.35 m

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3 years ago

Artyom0805 [142]

It does not it when put in the freezer it freezes the steam

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3 years ago

nikitadnepr [17]

Hot and cold water rising and sinking through other water
is definitely a description of convection.

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4 years ago

skelet666 [1.2K]

Answer:

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3 years ago

d1i1m1o1n [39]

Should the question say “what is the weight of the truck”? :)
I can then answer it. There is no information to find the weight of the boat ;)

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3 years ago