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Physics

1 answer:

Naya [18.7K]3 years ago

4 0

Answer:

0.242

Explanation:

m = 13.3 kg

a =d= 2.42 m/s²

g = 10 m/s²

from the laws of friction F = ¶R

===> ¶ = F/R = ma/mg = a/g

¶ = a/g = 2.42/10 = 0.242

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Heat always transfers from substances with _____ thermal energy to substances with _______ thermal until both substances reach t

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Why are some consolation visible to New York State observers at midnight during April , but not visible at midnight during Octob

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3 years ago

Grindstone: Rotational Dynamics and Kinematics You have a grindstone (a disk) that is 133.0 kg, has a 0.635 m radius, and is tur

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Answer:

Ff = 839.05 N

Explanation:

We can use the equation:

Ff = μ*N

where <em>N</em> can be obtained as follows:

∑ Fc = m*ac ⇒ N - F = m*ac = m*ω²*R ⇒ N = F + m*ω²*R

then if

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we get

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3 years ago

Using Rayleigh's criterion, calculate the diameter of an earth-based telescope that gives this resolution with 700 nm light.

pogonyaev

Complete Question

Due to blurring caused by atmospheric distortion, the best resolution that can be obtained by a normal, earth-based, visible-light telescope is about 0.3 arcsecond (there are 60 arcminutes in a degree and 60 arcseconds in an arcminute).Using Rayleigh's criterion, calculate the diameter of an earth-based telescope that gives this resolution with 700 nm light

Answer:

The diameter is $D = 0.59 \ m$