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Artemon [7]
2 years ago
10

Which components of static electricity does a photocopier use?

Physics
1 answer:
Salsk061 [2.6K]2 years ago
8 0

Answer:

For a photocopier to work, a field of positive charges must be generated on the surface of both the drum and the copy paper. These tasks are accomplished by the corona wires. These wires are subjected to a high voltage, which they subsequently transfer to the drum and paper in the form of static electricity.

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Find the reaction supports at Ta and TB as shown in the loaded beam.
koban [17]

ANSWER

\begin{gathered} T_A=17.5N \\ T_B=12.5N \end{gathered}

EXPLANATION

First, we have to make a sketch of the direction of the moments of the forces about 12m from the left in the diagram:

The sum of upward forces must be equal to the sum of downward forces. This implies that:

\begin{gathered} T_A+T_B=20+10 \\ T_A+T_B=30N \end{gathered}

Also, the sum of clockwise moments must be equal to the counter-clockwise moments:

\begin{gathered} (20\cdot8)+(T_B\cdot4)=(T_A\cdot12) \\ 160+4T_B=12T_A \\ \Rightarrow12T_A-4T_B=160 \end{gathered}

From the first equation, make TA the subject of the formula:

T_A=30-T_B

Substitute that into the second equation:

\begin{gathered} 12(30-T_B)-4T_B=160 \\ 360-12T_B-4T_B=160 \\ -16T_B=160-360=-200 \\ T_B=\frac{-200}{-16} \\ T_B=12.5N \end{gathered}

Substitute that into the equation for TA:

\begin{gathered} T_A=30-12.5 \\ T_A=17.5N \end{gathered}

Therefore, the reaction supports at TA and TB are:

\begin{gathered} T_A=17.5N \\ T_B=12.5N \end{gathered}

5 0
1 year ago
What is the average temperature of the city, 89.6 Fahrenheit, on the Celsius scale?
DaniilM [7]

Answer:

thrity-two degrees Celsius

8 0
3 years ago
Which phrase best completes the following analogy?
Hunter-Best [27]
 the answer to your question is physical fitness

7 0
3 years ago
Read 2 more answers
Anyone could answer this question
Kruka [31]
I believe it is crude birth rate :)
3 0
2 years ago
What is the difference in electrical potential energy between two places in an electric field?
Ierofanga [76]
The question is poorly worded, and makes it harder for the student to learn the basics of the subject. "Potential Difference" is the difference in electrical potential between two places in an electric field ... not in electrical potential energy.
4 0
3 years ago
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