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3 years ago

How to find the coefficient of friction without the force of friction or vice versa

Physics

1 answer:

son4ous [18]3 years ago

7 0

Answer:

Finding the Force of Friction Without an Experiment

1.The following equation tells you the strength of the frictional force (with the static friction coefficient): F = μ s t a t i c N F=\mu_{static} N F=μstaticN.

2.If your surface is flat and parallel to the ground, you can use: ...

3.If it isn't, the normal force is weaker.

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The headlights of a car are 1.6 m apart and produce light of wavelength 575 nm in vacuum. The pupil of the eye of the observer h

Xelga [282]

To solve this problem it is necessary to apply the concepts related to angular resolution, for which it is necessary that the angle is

$\theta = 1.22\frac{\lambda}{nd}$

Where

d = Diameter of the eye

n = Index of refraction

D = Distance between head lights

$\lambda$ = Wavelength

Replacing with our values we have that

$\theta = 1.22 \frac{(1.22)(575*10{-9})}{1.4(4*10^{-3})}$

$\theta = 1.252*10^{-4}rad$

Using the proportion of the arc length we have to

$L = \frac{D}{\theta}$

Where L is the maximum distance, therefore

$L = \frac{1.6}{1.252*10^{-4}}$

$L = 12.77km$

Therefore the maximum distance from the observer that the two headlights can be distinguished is 12.77km

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3 years ago

List forms of energy which you use from morning when you wake up till you reach the school?

11Alexandr11 [23.1K]

Answer:

mechanical energy, chemical energy, electrical energy heat energy sound energy light energy

.......

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3 years ago

What are the units of atmospheric pressure?

erastova [34]

Answer:

a unit of pressure defined as 101325 Pa

Explanation:

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4 years ago

What is the net force needed to lift a full grocery sack weighing 210N uniformly?

Alex

If the sack weighs 210 newtons, then an upward force of 210 newtons
exactly cancels the downward force of gravity, and makes the net vertical
force on the bag zero.

ANY upward force that's greater than 210 newtons makes the net force
act upward on the bag, and causes it to accelerate upward.

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3 years ago

Hurricanes along the Gulf Coastal areas of Texas increase the rate of coastal erosion.

4vir4ik [10]

Answer:

its the last question

Explanation:

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3 years ago