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almond37 [142]
3 years ago
10

A small glass bead charged to 8.0nC is in the plane that bisects a thin, uniformly charged, 10-cm-long glass rod and is 4.0 cm f

rom the rod's center. The bead is repelled from the rod with a force of 910?N .What is the total charge on the rod?

Physics
1 answer:
Over [174]3 years ago
3 0

Answer:

The total charge on the rod = 32.3nC

Explanation:

see the attached file

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A jet transport has a weight of 1.87 x 10⁶ N and is at rest on the runway. The two rear wheels are 16.0 m behind the front wheel
qwelly [4]

Answer:

a)  R(fw)  = 46.75*10⁶ (N)

b)  R(rwi) = 70.125*10⁶ [N]

Explanation: See Attached file (the rectangle stands for a jet)

The diagram shows forces acting on the jet

Let R(fw)    Reaction of front wheels and

R(rw)   Reaction of rear wheels

Now we apply the Stevin relation, for R(fw)  and a jet weight as follows

R(fw)/ 4   =  187*10⁶ / 16

Then :

R(fw)  = ( 1/4) *187*10⁶           ⇒   R(fw)  = 46.75*10⁶ (N)

And e do the same for the reaction on rear wheels

R(rw) / 12  = 187*10⁶ /16   ⇒     R(rw) =(3/4)*187*10⁶

R(rw) = 140,25*10⁶ [N]

The last expression is for the whole reaction, and must be devide by 2

because that force is exerted for two wheels, therefore on each of the two rear wheels the reaction will be:

R(rwi) = 70.125*10⁶ [N]

5 0
3 years ago
The diameter of Mars is 6794km, and its minimum distance from the earth is 5.58×10^7 km. When Mars is at this distance, find the
pav-90 [236]

Answer:

D = 0.2374 m

Explanation:

let D be the diameter of the image of mars, f be the focal length of the telescope mirror and β be the spatial resolution.

β = 6794×10^3/(5.58×10^7) = 0.1217562724

then:

The diameter of the telescope mirror is given by:

D = f×β

   = (1.95)×(0.1217562724)

   = 0.2374 m

Therefore, the diameter of the image of mars is 0.2374 m.

4 0
3 years ago
The ____ value of the overflow style keeps the element at the specified height and width, but cuts off excess content.
marta [7]
The appropriate response is hidden values in accordance with the overflow property. Hidden values can be as resources, for example, licenses, trademarks, or underestimated land. Financial specialists who are esteem arranged will frequently attempt to recognize an organization's hidden values.
7 0
2 years ago
Read 2 more answers
A circular coil that has 100 turns and a radius of 10.0 cm lies in a magnetic field that has a magnitude of 0.0650 T directed pe
yulyashka [42]

Answer:

(a) 0.204 Weber

(b) 0.22 Volt

Explanation:

N = 100, radius, r = 10 cm = 0.1 m, B = 0.0650 T, angle is 90 degree with the plane of coil, so theta = 0 degree with the normal of coil.

(a) Magnetic flux, Ф = N x B x A

Ф = 100 x 0.0650 x 3.14 x 0.1 0.1

Ф = 0.204 Weber

(b) B1 = 0.0650 T, B2 = 0.1 T, dt = 0.5 s

dB / dt = (B2 - B1) / dt = (0.1 - 0.0650) / 0.5 = 0.07 T / s

induced emf, e = N dФ/dt

e = N x A x dB/dt

e = 100 x 3.14 x 0.1 x 0.1 x 0.07 = 0.22 V

6 0
2 years ago
List out any 4 objectives of education​
e-lub [12.9K]
- vocational aim
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- intellectual aim
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2 years ago
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