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weqwewe [10]
3 years ago
10

A hollow, conducting sphere with an outer radius of 0.240 m and an inner radius of 0.200 m has a uniform surface charge density

of +6.47 × 10⁻⁶ C/m². A charge of -0.900 μC is now introduced into the cavity inside the sphere.
A. What is the new charge density σ on the outside of the sphere? Express your answer with the appropriate units.
B. Calculate the strength of the electric field E just outside the sphere. Express your answer with the appropriate units.
C. What is the electric flux through a spherical surface just inside the inner surface of the sphere? Express your answer with the appropriate units.
Physics
1 answer:
GarryVolchara [31]3 years ago
5 0
A. What is the new charge density
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Ok plz answer and tell me how to do it
kirza4 [7]
Answer: 25N

method: total force in the right hand direction is 100N and total force in the left hand direction is 125N. To get the net force, we add forces if they are in the same direction and substract if they are in opposite directions. since 100N and 125N are in opposite directions, we substract the larger value from the smaller value. Then we get 25N in the left hand direction as the final answer.
4 0
3 years ago
Noble Gases do not readily form compounds because they ___ chemically stable with 8 valence electrons
azamat

Answer : Noble Gases do not readily form compounds because they are chemically stable with 8 valence electrons.

Explanation :

Noble gases are the chemical elements that are present in group 18 in the periodic table.

The elements are helium, neon, argon, krypton, xenon and radon.

They are chemically most stable except helium due to having the maximum number of 8 valence electrons can hold their outermost shell that means they have a complete octet.

They are rarely reacts with other elements to form compounds by gaining or losing electrons since they are already chemically stable.

Hence, the noble Gases do not readily form compounds because they are chemically stable with 8 valence electrons.

8 0
3 years ago
Based on the law of conservation of energy, which statement is correct?
Nitella [24]

Answer:

You kinda left out the options you want us to choose from.

Resend the question with Full details

4 0
3 years ago
How does the Moon affect Earth? Describe two examples. Edmentum answer
Gelneren [198K]

Answer:

Gravity

Explanation:

4 0
3 years ago
Read 2 more answers
An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only
Pavel [41]

Answer:

vb = 22.13 m/s

Explanation:

ma = 124 kg

mb = 13 kg

vi = 2.10 m/s

According to the property of conservation of momentum, and considering that, initially, both the astronaut and the bag moved together at 2.10 m/s:

(m_a+m_b)v_i=m_av_a+m_bv_b

The minimum final velocity of the bag, vb, the will keep the astronaut from drifting away forever occurs when va = 0:

(124+13)2.10=124*0+13v_b\\v_b=\frac{287.7}{13}\\v_b= 22.13\ m/s

The minimum final velocity of the bag is 22.13 m/s.

4 0
3 years ago
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