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nydimaria [60]
3 years ago
14

A 15N block is sliding at constant speed across the frictionless floor of an ice rink.

Physics
1 answer:
Gnesinka [82]3 years ago
8 0

Answer:

so, why we have to find here..

<h3>stay safe healthy and happy.</h3>

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Which of the following is a star that has begun to run out of fuel? A) Neutron star B) Red giant C) Stellar nebula D) White dwar
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The answer is B.Red Giant

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hope this helps

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Which type of science: biology ( the study of life), chemistry ( the study of atoms/molecules), or physics ( the study of forces
Alexandra [31]
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How to get to the daley center from pink line?
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4 years ago
The escape velocity of any object from Earth is 11.2 km/s. (a) Express this speed in m/s and km/h. (b) At what temperature would
natima [27]

Answer:

a ) 11.1 *10^3 m/s = 39.96 Km/h

b) T_{o2} =1.58*10^5 K

Explanation:

a)v_{es} =v_{rms}= 11.1 km/s =11.1 *10^3 m/s = 39.96 Km/h

b)

M_O2 = 32.00 g/mol =32.0*10^{-3} kg/mol

gas constant R = 8.31 j/mol.K

v_{rms} = \sqrt{ \frac{3RT}{M}}

So, v_{rms,o2} =\sqrt{ \frac{3RT_{o2}}{M_{o2}}}

multiply each side by M_{o2}, so we have

v_{rms,o2}^2 *M_{o2} =3RT_{o2}

solving for temperature T_{o2}

T_{o2} = \frac{v_{rms,o2}^2 *M_{o2}}{3R}

In the question given,v_{rms} =v_{es}

T_{o2} = \frac{(11.1*10^3)^2 *32.0*10^{-3}}{3*8.31}

T_{o2} =1.58*10^5 K

7 0
4 years ago
Anothereeeeee freee points cuz why not
Dmitry [639]

Answer:

hiiiiiiiiiiiiiiiiiii

Explanation:

5 0
3 years ago
Read 2 more answers
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