Answer:
<em>The answer is C, a switch is set so an electrical charge cannot flow.</em>
Explanation:
In a transistor (working as a switch), 0 represents no flow of electricity; 1 represents electricity being allowed to flow
What two forces are required for generators and electric motors to work? “A” Electricity and magnetism.
In an electric motor, the energy transformation begins as “A” Electrical And becomes mechanical.
Complete Question
(A) What is the maximum tension possible in a 1.00- millimeter-diameter nylon tennis racket string?
(B) If you want tighter strings, what do you do to prevent breakage: use thinner or thicker strings? Why? What causes strings to break when they are hit by the ball?
The tensile strength of the nylon string is 
Answer:
A
T = 471.3 \ N
B
To prevent breakage the thickness of the string is increased
String breakage when the racket hit the ball is as a result of the string not being thick enough to withstand the increase in tension
Explanation:
From the question we are told that
The diameter is
The tensile strength of the nylon string is 
Generally the radius is mathematically evaluated as

=> 
=> 
The cross sectional area is mathematically represented as

=> 
=> 
Generally the tensile strength of nylon is mathematically represented as

Where T is the tension on the maximum tension on the string
So

=> 
=> 
Form the equation above we see that

So if the tension is increased to prevent breakage the thickness of the string is increased(i. e the cross-sectional area )
String breakage when the racket hit the ball is as a result of the string not being thick enough to withstand the increase in tension
Answer:
C. An area with a large river and significant elevation changes
Explanation:
"The best location for a hydroelectric station should be along the path of a river. It should be at least at the river canyon or at the place where the river narrows. This enables the collection of the water or the diversion of the river."
Hope this helps