Beth has built a simple series circuit using wire, a battery, a lightbulb, and a switch. The bulb, however, does not light up when the switch is closed. Which describes a step that will help troubleshoot and work toward the solution of this problem?

A.
Reverse the way the wire is connected to the poles of the battery.

B.
Use an electrical meter to test the voltage of the battery.

C.
Shorten the length of wire between the battery and the switch.

D.
Change the wiring scheme to parallel.

Answers

Answer 1

Answer: The right answer for the question that is being asked and shown above is that: "A. Reverse the way the wire is connected to the poles of the battery." the statement describes a step that will help troubleshoot and work toward the solution of this problem is that Reverse the way the wire is connected to the poles of the battery.

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A stone with a mass of 0.70 kg is attached to one end of a string 0.80 m long. The string will break if its tension exceeds 65.0 N. The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed. Find the maximum speed the stone can attain without breaking the string.

Answers

Answer:

The maximum speed the stone can attain without breaking the string is 8.62 m/s .

Explanation:

Given :

Mass of stone , m = 0.7 kg .

Length of string , l = 0.8 m .

It is also given that the stone will break if its tension exceeds 65.0 N.

Now , we know tension in the rope due to rotation is equal to the centripetal acceleration .

Therefore , the maximum speed the stone can attain without breaking the string is less than or equal to 65 N .

So , $(mv^2)/(r)=65$

Putting all value in above equation we get :

$(0.7* v^2)/(0.8)=65\n\nv= 8.62\ m/s$

Therefore , maximum speed the stone can attain without breaking the string is 8.62 m/s .

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Answers

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Answers

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Answers

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Answers

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