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Kay [80]
3 years ago
13

Which material produces static charge when rubbed?

Physics
1 answer:
natita [175]3 years ago
5 0
Many materials produce static charge

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Cube A has a volume of 2cm x 2cm x 2cm. what is its density
Ne4ueva [31]

The volume of the cube is (2cm x 2cm x 2cm) = 8 cm³ .

The density of the cube is

       (the mass of the cube, in grams) / (8 cm³)        grams per cm³ .

That's the best I can do, because you haven't told us the cube's mass.
 
8 0
3 years ago
3. A -4.00-uC charge lies 20.0cm to the right of a 2.00-uC charge on the x axis. What is the force on the 2.00-uC charge?
Sladkaya [172]

<u>Answer:</u>

The force on the 2.00-uC charge is 36 \times 10^{10} \mathrm{N}

<u>Explanation:</u>

We know that force between two charges is given by Coulomb’s law,

\mathrm{F}=\mathrm{k} \frac{q 1 q 2}{r * r}

Where k = Coulomb’s constant =

9.0 \times 10^{9} \mathrm{Nm}^{2} \mathrm{C}^{-2}

And q1 and q2 are the charges given to be = -4.00-uC and 2.00-uC charges

And r = distance between the charges = 20 cm = 0.2 m  

Substituting the given values in the formula we get force applied on 2.00\ \mu C charge,

F =  36 \times 10^{10} \mathrm{N} attractive force which is the required answer.

3 0
3 years ago
Which statement best describes the relationship between boron and silicon?
Lerok [7]
They have a diagonal relationship

8 0
3 years ago
Which correctly lists three main causes of deforestation?
ASHA 777 [7]
I think it’s A. Mining and logging are huge factors
4 0
2 years ago
Read 2 more answers
A train is approaching a signal tower at a speed of 40m/s. The train engineer sounds the 1000-Hz whistle, while a switchman in t
stealth61 [152]

v = speed of the source of sound or the train towards the listener or switchman = 40 m/s

V = actual speed of sound = 340 m/s

f = actual frequency of sound as emitted from source or the train = 1000 Hz

f' = frequency as observed by the listener or by switchman = ?

Using Doppler's law , frequency observed by a listener from a source moving towards it is given as

f' = V f /(V - v)

inserting the values

f' = 340 x 1000 /(340 - 40)

f' = 340 x 1000/300


3 0
2 years ago
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