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Andreas93 [3]
2 years ago
13

6. What are the methods to control noise pollution?​

Physics
2 answers:
max2010maxim [7]2 years ago
8 0

Answer:

You have to:

a) Improve your insulation.

b) Install a fence

c) Use modern Acoustic wall panels

d) Plant trees

e) Reduce electronic volumes,e.t.c.

Explanation:

okay.

Phoenix [80]2 years ago
7 0

Answer: Some of the ways to control noise pollution are as follows: (1) Control at Receiver's End (2) Suppression of Noise at Source (3) Acoustic Zoning (4) Sound Insulation at Construction Stages (5) Planting of Trees (6) Legislative Measures.

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Two carts undergo an inelastic collision where they stick together. Cart A has an initial velocity v0, and the second cart B is
dimulka [17.4K]

Answer:

Explanation:

Initial kinetic energy of the system = 1/2 mA v0²

If Vf be the final velocity of both the carts

applying conservation of momentum

final velocity

Vf = mAvo / ( mA +mB)

kinetic energy ( final ) =  1/2 (mA +mB)mA²vo² /  ( mA +mB)²

= mA²vo²  / 2( mA +mB)

Given 1/2 mA v0²  / mA²vo²  / 2( mA +mB) = 6

mA v0² x ( mA +mB) / mA²vo² = 6

( mA +mB) / mA = 6

mA + mB = 6 mA

5 mA = mB

mB / mA = 5 .

3 0
3 years ago
What is Sonogram?Name one use of sonogram.
Blizzard [7]

Answer:

<em>Sonogram </em><em>is </em><em>a </em><em>medical </em><em>image </em><em>produced </em><em>by </em><em>ultrasound </em><em>echo. </em>

<em>It </em><em>is </em><em>used </em><em>to </em><em>help</em><em> </em><em>diagnose </em><em>causes </em><em>of </em><em>pain </em><em>and </em><em>swelling</em><em>. </em>

8 0
3 years ago
The color of an object we see is determined by the
aksik [14]

Answer:

An object appears white when it reflects all wavelengths and black when it absorbs them all. Red, green and blue are the additive primary colors of the color spectrum. Combining balanced amounts of red, green and blue lights also produces pure white.

Explanation:

7 0
2 years ago
What do you need in order to change the velocity of an object?
Elden [556K]

Answer:

Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity.

Explanation:

5 0
2 years ago
What is the speed of a 50 g rock if its de broglie wavelength is 3.32x10^-34m?
ivann1987 [24]
We can find the momentum of the rock by using De Broglie's relationship:
p= \frac{h}{\lambda}
where
p is the momentum
h is the Planck constant
\lambda is the De Broglie's wavelength

By using \lambda=3.32 \cdot 10^{-34} m, we find
p= \frac{6.6 \cdot 10^{-34} Js}{3.32 \cdot 10^{-34} m}=1.99 kg m/s

The momentum of the rock is
p=mv
where m=50 g=0.05 kg is the mass and v is its velocity. Rearranging the equation, we find the speed of the rock:
v= \frac{p}{m}= \frac{1.99 kg m/s}{0.05 kg}=39.8 m/s
7 0
3 years ago
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