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4 years ago

A string is stretched by two equal but opposite forces f newton each what is tension in string

1 answer:

8 0

There is actually no force of tension in the string as the strings holds two forces acting on the same direction. It is zero.

Explanation:

If there was a tension in the string the two opposing forces with two equal magnitude will be pulling in the opposite directions.

When the f newton of the right is pulled one side and the f newton of the left is pulled the other side, there would be only one action by the force. Since there is one action in the same string in the opposite directions the tension can only be the magnitude of the string.

Indeed, there is actually no force of tension in the string as the strings holds two forces acting on the same direction. It is zero.

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If an object experiences an impulse and stops, what is its final momentum?

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Answer:

Zero

Explanation:

Since momentum is a product of mass and velocity of an object, in this case when the object stops its final velocity is zero hence despite the magnitude of its mass, multiplied by zero the final momentum is equivalent to zero. However, in case after experiencing momentum its velocity reduces but doesn’t come to a rest, the momentum will have a value. For this question, the first case applies hence momentum value is zero.

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3 years ago

2.0 kg mass is lifted4.0m above the ground find the gravitational energy

melisa1 [442]

E = mgh
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3 years ago

Which statements describe the results of the effect of angle of insolation on absorption experiment? Check all that apply.

lilavasa [31]

Answer:

At 6 minutes, the soil temperature at a 45° angle of insolation is higher than at 0°.

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Explanation:

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3 years ago

Read 2 more answers

A 5.50-kg object is hung from the bottom end of a vertical spring fastened to an overhead beam. The object is set into vertical

iris [78.8K]

Answer:

17.71N/m

Explanation:

The period of the spring is expressed according to the expression;

$T = 2 \pi \sqrt{\frac{m}{k} } \\$

m is the mass of the object

k is the force constant

Given

m = 5.50kg

T = 3.50s

Substitute into the formula;

$T = 2 \pi \sqrt{\frac{m}{k} } \\3.5 = 2 (3.14) \sqrt{\frac{5.5}{k} } \\3.5 = 6.28 \sqrt{\frac{5.5}{k} } \\\frac{3.5}{6.28} = \sqrt{\frac{5.5}{k} } \\0.557 = \sqrt{\frac{5.5}{k} } \\square \ both \ sides\\0.557^2 = (\sqrt{\frac{5.5}{k} })^2 \\0.3106 = \frac{5,5}{k}\\k = \frac{5.5}{0.3106}\\k = 17.71N/m$

Hence the force constant of the spring is 17.71N/m

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3 years ago

The form of energy that holds atomic nuclei together is called

MatroZZZ [7]

<span>The strong nuclear force holds the nucleons together. If there is an imbalance between the two forces, the nucleus will decay. ... When protons and neutrons forma nucleus, energy is released. This energy is called the nuclear binding energy. Thisenergy comes from the conversion of a small amount of mass into energy.</span>

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3 years ago