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Soloha48 [4]
3 years ago
11

An infinite line of charge with linear density λ1 = 6 μC/m is positioned along the axis of a thick insulating shell of inner rad

ius a = 2.6 cm and outer radius b = 4.2 cm. The insulating shell is uniformly charged with a volume density of rho = -634 μC/m3. What is λ2, the linear charge density of the insulating shell?
Physics
1 answer:
Anna11 [10]3 years ago
5 0

Answer: λ2= 2.34 * 10^-6 C/m

Explanation: In order to calculate the value of the  linear charge density of the insulating shell we have to multiply ρ* Volume of the hollow cylinder, so

Volume of cylinder:2*π*b*L *(b-a)  where (b-a) is the thickness, then

λ2=Q/L = 634 *10^-6 C/m^3* 2*π*0.042 m*(0.042-0.26)== 2.34 μ C/m

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nalin [4]

Answer:

The maximum volume is 1417.87 inch^3

Explanation:

<u>Optimization Using Derivatives</u>

We have a 24x30 inch piece of metal and we need to make a rectangular box by cutting a square from each corner of the piece and bending up the sides. The width of the piece is 24 inches and its length is 30 inches

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V=(24-2x)(30-2x)x

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x^2-18x+60=0

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x^2-18x+81-81+60=0

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x=9+\sqrt{21}=13.58\ inch

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4 0
3 years ago
If someone ways 600 newtons and the shoes have an area of 300cm squared, what pressure does he exert on the ground?
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Pressure = Force / Area

Put your data in front of yourself.

Force = 600 Newtons
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Firstly you need to convert the area into m^2 and you do this by diving 300 with 10000.

Now you use the formula:-
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Hope this helps!
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3 years ago
40 points! Will give brainliest!
Lyrx [107]
It’s C “ Ac can be transported over long distances.”
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