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Yuri [45]
2 years ago
7

A boy is swinging a yo-yo with mass 0.25 kg in a circle with radius 1 m at a speed of 6 m/s. What is the tension in the string c

onnecting the yo-yo to the boy's finger, disregarding the effect of gravity?
A. 20N
B. 12N
C. 35N
D. 9N
Physics
1 answer:
Paladinen [302]2 years ago
5 0

Answer:

D. 9 N

Explanation:

The tension on the string is equivalent to the centripetal force.

Centripetal force is the force exerted by an object in circular motion or path towards the center of the circular path.

Centripetal force = mv²/r

where m is the mass of the object, v is the velocity and r is the radius of the circular path.

Centripetal force = (0.25 kg × 6²)/ 1

                            = 9 N

Thus, the tension on the string is 9 N

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Compare and contrast electric potential energy and electric potential difference? Explain.
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Answer:

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The energy that is needed to move a charge against an electric firld is called Electric Potential Energy

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<u><em>Relation:</em></u>

Relation between Electric potential and electrical potential energy is given by

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2 years ago
A woman experiences an electrical shock. The electrons making the shock come from the A woman experiences an electrical shock. T
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The electrons making the shock come from the women's body.

<h3>What is Electric shock ?</h3>

When a high voltage current flows through the body, electrical shock results. When someone unintentionally touches an electrical source, this typically occurs. Treatment for both internal and exterior burns may be necessary as part of the aftercare.

The nervous system may be impacted by a shock.

The tissue that makes up nerves presents extremely minimal resistance to the flow of an electric charge. Electric shocks that impact nerves can cause pain, tingling, numbness, weakness, or trouble moving a limb. These effects might disappear with time or remain for good.

How to Prevent from Electrical Shocks –

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Janet is an environmental scientist studying how the behavior of humans in urban areas affects the surrounding natural environme
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<em>For this case we have that by definition, the social sciences group all the scientific disciplines whose object of study is linked to the activities and behavior of human beings. The social sciences, therefore, analyze the manifestations of society, both material and symbolic.</em>

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Answer:

Option A

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