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bonufazy [111]
3 years ago
6

A string of length 4m is extended by 0.02m, when a load of 0.4kg is suspended at its end. What will be the length of the string,

when the applied force is 15N
Physics
1 answer:
Blababa [14]3 years ago
6 0

Answer:

ima have to say c

Explanation:

or A or B or D choose ur best answer

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How are the electric field lines around a positive charge affected when a second positive charge is near it?
Liono4ka [1.6K]

Answer:Because it likes to repel and attract opposites

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3 years ago
In the chemical formula for an ionic compound, which item is written first?
tatuchka [14]

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C,

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Does a light bulb with a greater wattage have a greater brightness
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3 years ago
Read 2 more answers
Consider two children sitting on a merry-go-round, with one closer to the outer edge and one closer to the center. show answer N
dolphi86 [110]

Answer:

They both have the same angular speed.

Explanation:

The mathematical formula for angular speed is:

w=\frac{2\pi}{T}

where w is angular speed, 2\pi is a constant, and T is the period (the time it takes the marry-go-round to complete a lap).

What we can see from the formula is that, since the 2\pi does not change its value, the angular speed depends only on the period T.

In this case for both the children closer to the outher edge and for the children closer to the center, the time to complete a lap is the same, because the time does not depend on where they are sitting in the marry go round. This means that the period for both is the same.

Thus, since the period for both is the same, the angular speed given by

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4 0
3 years ago
Problems - Show all work.
Fittoniya [83]

Answer:

21s

Explanation:

Given parameters;

Radius  = 10m

Speed or velocity  = 3m/s

Unknown:

Period  = ?

Solution:

To solve this problem, use the expression:

      v  = \frac{2\pi r}{T}  

r is the radius

T is the unknown

           Input the parameters and solve for T;

    3  = \frac{2 x \pi  x 10}{T}  

    62.84 = 3T

         T  = 21s

4 0
3 years ago
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