2 years ago

Which of the following is an example of an acceptable time to ignore the rules and etiquette of a sport?

Physics

2 answers:

nirvana33 [79]2 years ago

6 0

I believe it’s D. It’s never acceptable to ignore rules and etiquette.

Helga [31]2 years ago

4 0

Answer:

D-it's never acceptable to ignore rules and etiquette

Explanation:

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Answer:

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2 years ago

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ira [324]

I really don’t know but I think it’s D

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3 years ago

A 0.500-kg block, starting at rest, slides down a 30.0° incline with static and kinetic friction coefficients of 0.350 and 0.250

Leviafan [203]

Answer:x=23.4 cm

Explanation:

Given

mass of block $m=0.5 kg$

inclination $\theta =30$

coefficient of static friction $\mu =0.35$

coefficient of kinetic friction $\mu _k=0.25$

distance traveled $d=77.3 cm$

spring constant $k=35 N/m$

work done by gravity+work done by friction=Energy stored in Spring

$mg\sin \theta d-\mu _kmg\cos \theta d=\frac{kx^2}{2}$

$mgd\left ( \sin \theta -\mu _k\cos \theta \right )=\frac{kx^2}{2}$

$0.5\times 9.8\times 0.773\left ( \sin 30-0.25\cos 30\right )=\frac{35\times x^2}{2}$

$x=\sqrt{\frac{2\times 0.5\times 9.8\times 0.773(\sin 30-0.25\times \cos 30)}{35}}$

$x=0.234 m$

$x=23.4 cm$

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3 years ago

Who wrote the universal gravitation

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I think it was Isaac Newton

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The Moon is much smaller than Earth but is still made of rock that you could walk on. However, you would need a spacesuit to do

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