4 years ago

Examples were friction is not useful

Physics

1 answer:

expeople1 [14]4 years ago

7 0

The old electricity meters with disk using sapphire bearings for friction to be minimal to not aggravate metering

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Two cars are sitting still. Car A has a mass of 2000 kilograms. Car B has a mass of 4000 kg. If the goal is to push both cars to

astra-53 [7]

Since car B has twice as much mass as car A has, it would require 2x as much force that it would need to push car A down.

If that was kinda confusing lemme say it again,

It would take twice as much that would be needed to push car B down than car A

Since everything is the same, basically two people would need to push down car B and one person for car A

Hope this helps

7 0

3 years ago

If a box weighing 520 N is hung from a spring whose constant is 650 N/m, how many centimeters will the spring stretch?

lara [203]

80 cm

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3 years ago

Read 2 more answers

What does this mean Atoms and elements are the basic back bone of the universe .

il63 [147K]

It means every thing is made out of Atoms and some things are element componds so elements are the "backbone" of the compounds.

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3 years ago

The caste system is an example of

snow_lady [41]

Answer:

It is example of Closed system

7 0

3 years ago

When a certain rubber band is stretched a distance x, it exerts a restoring force of magnitude f = ax, where a is a constant. th

Veseljchak [2.6K]

Given:
F = ax
where
x = distance by which the rubber band is stretched
a = constant

The work done in stretching the rubber band from x = 0 to x = L is
$W=\int_{0}^{L} Fdx = \int_{0}^{L}ax \, dx = \frac{a}{2} [x^{2} ]_{0}^{L} = \frac{aL^{2}}{2}$

Answer: $\frac{aL^{2}}{2}$

4 0

4 years ago