4 years ago

In classical mechanics there are three base dimensions. length is one of them. what are the other two? view available hint(s)

Physics

1 answer:

torisob [31]4 years ago

7 0

Other base dimensions are mass and time

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Two forces, F⃗ 1F→1F_1_vec and F⃗ 2F→2F_2_vec, act at a point. F⃗ 1F→1F_1_vec has a magnitude of 9.20 NN and is directed at an a

BARSIC [14]

Answer:

The x component of the resultant force is -7.27N.

Explanation:

To obtain the x component of the resultant force, first we have to know the x components of the other forces. To do this, we just have to do some trigonometry:

$|F_{1x}|=|F_1|\cos\theta_1=9.20N\cos62.0\°=4.31N \\|F_{2x}|=|F_2|\cos\theta_2=5.00N\cos53.6\°=2.96N$

Since both vectors are in the left side of the y-axis, they have a negative x component. So:

$F_{1x}=-4.31N;\\F_{2x}=-2.96N$

Finally, we sum both components to obtain the component of the resultant force:

$F_{Rx}=-4.31N-2.96N=-7.27N$

In words, the x component of the resultant force is -7.27N.

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3 years ago

Give two examples where friction is a nuisance

dlinn [17]

Answer:

it can cause wear and tear and reduces efficiency as energy is lost.

Explanation:

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3 years ago

Why does sound travel slower at a cold temperature?

tatyana61 [14]

<h2>Answer:</h2><h2>It is due to a refractment of light.</h2>

Sound moves faster in warmer air than colder air the way bends away from the warm air and back towards of air.

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3 years ago

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If the mass of the cart was increased but the hanging mass remained the same, how would the acceleration be affected? Explain ho

Margaret [11]

Answer:

It is always said that mass is same everywhere.

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3 years ago

If the sun in 148 million kilometers from the earth, how many minutes will it take the light from the sun to reach the earth?

Natasha2012 [34]

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about 8 mins and 20 secs

Explanation:

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3 years ago