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3 years ago

Which of the following is equivalent to 140 centiliters?

Physics

2 answers:

tekilochka [14]3 years ago

7 0

D, 0.140 liters! Hang on a sec and I'll show you a trick I use.

muminat3 years ago

7 0

Answer:

$0.00140\ kiloliter=140\ centiliters$

Explanation:

Here, it is required to write the equivalent to 140 centimeters. The conversions from one unit to another is as follows :

$1\ milliliter=0.1\ centiliters$

$1\ kiloliter=100000\ centiliters$

$1\ deciliter=10\ centiliters$

$1\ liter=100\ centiliters$

So, from above conversion factors we can see that,

$0.00140\ kiloliter=140\ centiliters$

Hence, 0.00140 kiloliters is equivalent to 140 centiliters. Therefore, this is the required solution.

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One horse is pulling a 755 kg sled straight ahead applying a force of 1988 N. If the acceleration of the sled is 1.36 m/s2, what

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Answer:

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Explanation:

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$\sum\overrightarrow{F}=m\overrightarrow{a}$ (1)

With F the net force, m the mass and a the acceleration of the object. In our case we're interested on what's happening to the sled, then we have to analyze the forces on it, those forces are the weight and the normal force on the vertical direction and the pulling force and frictional force in the horizontal direction. So, because (1) is a vector equation we can express that in their vertical (y) and horizontal (x) components:

$F_y=ma_y$ (2)

$F_x=ma_x$ (3)

On y we have that the acceleration is zero because the sled is not moving upward or downward, remember that the net force on y is the weight (W) pointing downward and the normal force pointing upward:

$F_y=W+n=0$