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Tems11 [23]
2 years ago
15

The model shows sunlight reaching Earth. Four points are shown on different parts of earth.

Physics
1 answer:
ser-zykov [4K]2 years ago
6 0

Answer:

Point 3

Explanation:

It is a summer month position but it has no sunlight.

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B) not work ,because the water would freeze
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A 1.80-m string of weight 0.0126 N is tied to the ceiling at its upper end, and the lower end supports a weight W. Neglect the v
Veseljchak [2.6K]

Answer:

W = 0.135 N

Explanation:

Given:

- y (x, t) = 8.50*cos(172*x -2730*t)

- Weight of string m*g = 0.0126 N

- Attached weight = W

Find:

The attached weight W given that Tension and W are equal.

Solution:

The general form of standing mechanical waves is given by:

                            y (x, t) = A*cos(k*x -w*t)  

Where k = stiffness and w = angular frequency

Hence,

                           k = 172 and w = 2730

- Calculate wave speed V:

                            V = w / k = 2730 / 172 = 13.78 m/s

- Tension in the string T:

                            T = Y*V^2

where Y: is the mass per unit length of the string.

- The tension T and weight attached W are equal:

                           T = W = Y*V^2 = (w/L*g)*V^2

                            W = (0.0126 / 1.8*9.81)*(13.78)^2

                            W = 0.135 N

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3 years ago
What does the speed of sound depend on?
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I believe it's 'A'. Hopefully this helps!~ :)
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\huge\mathfrak\red{answer}

Jake was playing making a paper airplane, after making he kept it on the table and went to have food.

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{kept in on the table>rest

brother threw the plane>moving

it hit his mother>force that stopped it}

(mark me brainliest if you're satisfied with my answer)

\large\sf\red{thank \: you}

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Which of Newton’s Laws involves mass and acceleration? Question 1 options: 3rd 1st 2nd All of them
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The answer would be Newton’s Second Law
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