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insens350 [35]
2 years ago
10

A pressure of 400 Pa is applied to an area of 2.5 m2.What force applies this pressure?

Physics
1 answer:
Irina-Kira [14]2 years ago
4 0
F = 400 Pa x 2.5 m2
F = 1 kN
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The second ball hits at the same time.

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A person travels by car from one city to another with differem constan1 speeds between pairs of cities. She drives for 30.0 min
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Answer:

a.52.9 km/h

b.90 km

Explanation:

We are given that

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Using the formula

Average speed=\frac{90}{1.7}=52.9Km/h

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3 years ago
In which condition is relative velocity known by adding the velocity od the first body and that of the second body ?​
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when a two bodies A and B are moving at an angle 180° with each other then the relative velocity is the sum of bodies the velocity .i.e,

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3 0
2 years ago
You have a string with a mass of 0.0135 kg. You stretch the string with a force of 8.29 N, giving it a length of 1.83 m. Then yo
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The wavelength of the standing wave at fourth harmonic is; λ = 0.985 m and the frequency of the wave at the calculated wavelength is; f = 36.84 Hz

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mass of string; m = 0.0133 kg

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Length of string; L = 1.97 m

1. To find the wavelength at the fourth normal node.

At the fourth harmonic, there will be 2 nodes.

Thus, the wavelength will be;

λ = L/2

λ = 1.97/2

λ = 0.985 m

2. To find the velocity of the wave from the formula;

v = √(F/(m/L)

Plugging in the relevant values gives;

v = √(8.89/(0.0133/1.97)

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Now, formula for frequency here is;

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Read more about Harmonics of standing waves at; brainly.com/question/10274257

#SPJ4

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