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aliya0001 [1]
2 years ago
12

If the normal force exerted on an object increases, the coefficient of sliding friction will also increase. True False

Physics
2 answers:
lbvjy [14]2 years ago
4 0

Answer:

FALSE

Explanation:

As we know that the friction force between two sliding surfaces is given by the formula

F_f = \mu F_n

here

\mu = coefficient of friction

it depends on the the inter molecular force between the molecules of the two surfaces which slide over each other

now if we will increase the normal force then it will increase the force of friction

but if will not change the value of coefficient of friction between two surface as it is property of the surface only

professor190 [17]2 years ago
3 0
The answer is false 

I hope I helped
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yKpoI14uk [10]

13.6g

136g

Explanation:

Given parameters:

Density of mercury = 13.6g/cm³

Unknown:

Mass of :

1cm³ of mercury

10cm³ of mercury

Solution:

Density is the mass per unit volume of a substance. It is the amount of matter in a given volume.

   Density = \frac{mass}{volume}

Since the unknown in the problem is mass;

    Mass = density x volume

Mass of  1cm³ of mercury = 13.6 x 1 = 13.6g

Mass of  10cm³ of mercury = 10 x 13.6 = 136g

learn more:

Density problems brainly.com/question/3433940

#learnwithBrainly

5 0
3 years ago
Is static electricity positive or negative? Explain
Vlad1618 [11]
T<span>he phenomenon of </span>static electricity<span> requires a separation of </span>positive<span> and </span>negative<span> charges. When two materials are in contact, electrons may move from one material to the other, which leaves an excess of </span>positive<span>charge on one material, and an equal </span>negative<span> charge on the other.</span>
5 0
3 years ago
During a thunderstorm, a plasma channel forms between the negatively charged clouds and the positively charged Earth, which crea
olchik [2.2K]
Electrons would likely pass through the plasma channel when the formation of a lightning takes place. Lightning is primarily caused by the formation of an ionised cloud in the atmosphere. This cloud was due to the attractions between molecules of rain drops wherein produce a negative charge.
4 0
2 years ago
Read 2 more answers
A 26-kg chandelier hangs from a ceiling on a vertical 4.0-m-long wire. what horizontal force would be necessary to displace its
-Dominant- [34]
First of all you have that the force that is in cable in its vertical posibion is:
 Fy = m * g
 Fy = (26) * (9.8) = 254.8 N
 Then, the force in horizontal direction will be:
 Tan (x) = Fy / Fx
 Clearing:
 Fx = Fy / tan (x)
 Substituting values:
 Fx = (254.8) / (0.17 / 4)
 Fx = 5995.29 N
 Answer:
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8 0
2 years ago
The big bang theory states that the universe is approximately _________. Which number best completes the sentence
taurus [48]

Answer:

Answer below!!

Explanation:

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Hope I Helped!!!

:)

3 0
2 years ago
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