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serg [7]
3 years ago
9

A wire is stretched just to its breaking point by a force F . A longer wire made of the same material has the same diameter. The

force that will stretch the longer wire to its breaking point is much smaller than F?
Physics
2 answers:
ICE Princess25 [194]3 years ago
8 0

Answer: No

Explanation:

The force F required is equal to the Force exerted in stretching the first material since conditions are the same

Viefleur [7K]3 years ago
6 0

Answer:

No.

Explanation:

Both wires are made up of the same material which means they will have the same young modulus.

Y = F/A × L/ΔL

From the equation above, the force applied per cross sectional (same diameter) are is the same for both materials and is constant.

So

L1/ΔL1 = L2/ΔL2

Or L2/L1 = ΔL2/ΔL1

So the force needed to bring about a stretching the the breaking point is the same. The only difference is in by how much the longer wire would have to stretch before reaching its breaking point.

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Answer:

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3 years ago
A stone is dropped from a certain height, distance covered by it in one second is:
Alinara [238K]

Answer:

d = 4.9 m

Explanation:

It is mentioned that a stone is dropped from a certain height. It is required to find the distance covered by it in one second.

The initial speed of the stone is equal to 0 as it was at rest. Let d is the distance covered by the stone.

Using second equation of motion :

d=ut+\dfrac{1}{2}at^2

Put u = 0 and a = g

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5 0
4 years ago
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Ugo [173]
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7 0
4 years ago
The lowest possible temperature in outer space is 3.13 K. What is the rms speed of hydrogen molecules at this temperature? (The
Umnica [9.8K]

Answer:

v_{rms} =196.59 m/s

Given:

Temperature, T = 3.13 K

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Solution:

To calculate the root mean squarer or rms speed of hydrogen molecule, we use the given formula:

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5 0
3 years ago
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