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torisob [31]
3 years ago
8

Jake's toy car is sitting on a smooth, flat surface. This wheel and axle simple machine will remain in the same place because th

e ________ force prevents the car from rolling away on its own.
Physics
1 answer:
weeeeeb [17]3 years ago
8 0

Answer:

Inertial

Explanation:

By the Newton's first law of motion every body continues to be in the state of rest or in uniform motion until an external force is applied to it.

Here the car sits on a friction-less surface so no force of friction will act on it and the wheels will continue to rotate irrespective of the position of the car.

The toy car will continue to be in the same place until and external force acts on it and causes acceleration in it.

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How does this diagram demonstrate the law of superposition?
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Explanation:

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The ______ is the component of communication through which information is transferred.
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3 years ago
A physicist makes a cup of instant coffee and notices that, as the coffee cools, its level drops 3.00 mm in the glass cup. Show
Lady bird [3.3K]

Answer:

change in height  is 1.664 mm

Explanation:

Given data

drops = 3.00 mm

diameter = 5.00 cm = 0.05 mm

decrease  =  350 cm^3

temperature = 95°C to 44.0°C

to find out

the decrease in millimeters in level

solution

we  will calculate here change in volume so we can find how much level is decrease

change in volume = β v change in temp   ...............1

here change in volume = area× height

so = \pi /4 × d² h

so we can say change in volume =  \pi /4 × d² × change in height   .......2

so from equation 1 and 2  we calculate change in height

( β(w) -β(g) )× v× change in temp = \pi /4 × d² × change in height

change in height = 4 × ( β(w) -β(g) ) v× change in temp / \pi /4 × d²

put all value here

change in height = 4 × ( 210 - 27 )(350 ) 10^{-6}× (95-44) / \pi /4 × 0.05²

change in height  is 1.664 mm

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3 years ago
Given that both liquid A and B exert the same amount of pressure .What would be the height of column of liquid A if the density
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Answer:

ans 5

Explanation:

hope it's help It seems to me

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