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FrozenT [24]
3 years ago
10

a stone is dropped into a deep well and is heard to hit the water 3.41 s after being dropped. determine the depth of the well. .

..?
Physics
1 answer:
Sunny_sXe [5.5K]3 years ago
8 0
D = ut + 1/2 at^2

d = 0 x 3.41 + 1/2  x 9.8  x 3.14 ^2

d = 48.31

Hope this helps
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Answer;

B. Without good stability, athletes are too clumsy to perform well.

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Transverse waves are sent along a 4.50 m long string with a speed of 85.00 m/s. The string is under a tension of 20.00 N. What i
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Answer:

m = 0.0125 kg

Explanation:

Let us apply the formula for the speed of a wave on a string that is under tension:

v = \sqrt{\frac{F}{\mu} }

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Mass per unit length is given as:

μ  = m / l

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l = length of the string

This implies that:

v = \sqrt{\frac{F}{m/l} }\\ \\v = \sqrt{\frac{F * l}{m} }

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v^2 = \frac{F * l}{m}\\\\m = \frac{F * l}{v^2}

From the question:

F = 20 N

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Write a hypothesis about the use of an object's physical
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If the mass of the object and the volume of the object is determined;

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2 years ago
38.4 mol of krypton is in a rigid box of volume 64 cm^3 and is initially at temperature 512.88°C. The gas then undergoes isobari
kolbaska11 [484]

Answer:

Final volumen first process V_{2} = 98,44 cm^{3}

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where:

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T is the temperature in Kelvin

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T = \frac{P V }{n R }

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\frac{P_{2} V_{2} }{n R } = \frac{P_{3} V_{3} }{n R }

P_{2} V_{2}  = P_{3} V_{3}

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