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Paha777 [63]
1 year ago
13

Which action would be most likely to reduce the noise level of people talking in a restaurant?

Physics
2 answers:
vazorg [7]1 year ago
7 0
B.adding carpet and fabric wall covering to absorb sound
Mrrafil [7]1 year ago
4 0
The answer is B adding carpet and fabric wall coverings to absorb sound
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What do you need to know to establish motion
avanturin [10]

Answer:

An object is in motion if it changes position relative to a reference point.

Explanation:

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2 years ago
What is the connection between the x- and y-motions of a projectile?
Sunny_sXe [5.5K]
Answer c, velocity would be the answer.
5 0
3 years ago
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Three collinear forces,F1=45N west,F2=63N east and an unknown force F3 are applied to an object.The resultant force of the three
Greeley [361]

Take east to be the positive direction. Then the resultant force from adding <em>F</em>₁ and <em>F</em>₂ is

<em>F</em>₁ + <em>F</em>₂ = (-45 N) + 63 N = 18 N

which is positive, so it's directed east.

To this we add a third force <em>F</em>₃ such that the resultant is 12 N pointing west, making it negative, so that

18 N + <em>F</em>₃ = -12 N

<em>F</em>₃ = -30 N

So <em>F</em>₃ has a magnitude of 30 N and points west.

6 0
3 years ago
What is a nebula? <br> please help I am clueless
Rainbow [258]
A nebula is gas, dust, and other things that form and form some sort of clould like thing. It also looks cool because of the colors it produces. I'm sure you could do a web search to find more about it, I don't take astronomy hahaha
4 0
3 years ago
A coin is dropped in a 15.0 m deep well.
labwork [276]

Answer:

t = 1.75

t = 0.04

Explanation:

a)

For part 1 we want to use a kenamatic equation with constant acceleration:

X = 1/2*a*t^2

isolate time

t = sqrt(2X / a)

Plugin known variables. Acceleration is the force of gravity which is 9.8 m/s^2

t = sqrt(2*15m / 9.8m/s^2)

t = 1.75 s

b)

The speed of sound travels at a constant speed therefore we don't need acceleration and can use the equation:

v = d / t

isolate time

t = d / v

plug in known variables

t = 15m / 340m/s

t = 0.04 s

7 0
2 years ago
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