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saul85 [17]
3 years ago
15

Ten identical steel wires have equal lengths L and equal "spring constants" k. The Young's modulus of each wire is Y. The wires

are connected end to end, so that the resultant wire has length 10L. What is the Young's modulus of the resulting wire?
Physics
1 answer:
Vsevolod [243]3 years ago
4 0

Answer:

Y

Explanation:

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Two forces act on a 16 kg object. The first force has a magnitude of 68 N and is directed 24 degrees north of east. The second f
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Answer:

The correct Answer to the question is : e) 4.1 m/s^2, 52 degrees north of east

Explanation:

F1= 68 N < 24º = 62.12 i + 27.65 j

F2= 32N < 132º = -21.41 i + 23.78 j

R= F1+F2= 40.71 i +51.43 j = 65.59 N < 51.63 º

By 2nd law of newton:

F= m * a

R= m*a

a= R/m

a= 4.1 m/s² < 52º  (52 degrees north of east)

I consideer 0º at the EAST axis.

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3 years ago
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A molecule that moves across a cell membrane without using the cell’s energy tends to move
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Answer:answer is b

Explanation:

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Harry and Hagrid needed to get money out of Gringotts bank. The bank cart was accelerating at a rate of 4 m/s2 and it had a mass
Nutka1998 [239]

a = acceleration of the bank cart = 4 m/s²

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According to newton's second law , Net force is the product of mass of the object and the acceleration of the object.

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hence Net force acting on the cart is given as

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8 0
3 years ago
Victoria has a crate of vegetables that weighs 100 newtons she exerts a force of 100 Newtons to lift the crate with a pulley wha
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By definition, the mechanical advantage is the relationship that exists between the output force or load lifted and the value of the force applied.

Thus, using the definition, we have that the mechanical advantage is given by:

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Answer:

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Equal to 1

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4 years ago
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Masteriza [31]

Answer:

Electromagnetic waves have crests and troughs similar to those of ocean waves. The distance between crests is the wavelength. The shortest wavelengths are just fractions of the size of an atom, while the longest wavelengths scientists currently study can be larger than the diameter of our planet!

Explanation:

hope it's helps u ...........!

3 0
2 years ago
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