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1 year ago

Enumerate two ways that you practice to control manage noise pollution

1 answer:

4 0

1. Sound insulation at construction sides.
2. Using silencers in automobiles and replacing old noisy machines with new quitter machines or using lubricants

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Please help me !! i am tired i worked all day to bring my grade up whitch i did i just gotta do this last assiment I will give b

Anvisha [2.4K]

Plutonium= Pu, 94, 244,94,94

Chromium= Cr, 24,52, 24,24

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3 years ago

The Gulf Stream off the east coast of the United States can flow at a rapid 3.3 m/s to the north. A ship in this current has a c

never [62]

Answer:

2.29 m/s

Explanation:

given,

Speed of the stream to north,x = 3.3 m/s

speed of the ship,z = 8 m/s

Speed of the stream is in north direction, to move the ship in west direction ship should move in south direction.

To solve this a right angle triangle is constructed.

where speed of the stream is base and speed of cruise is hypotenuse.

now, speed of ship with respect to ground

z² = x² + y²

y² = z² - x²

y² = 8² - 3.3²

$y = \sqrt{53.11}$

y = 2.29 m/s

Hence, the speed of the ship with respect to ground is equal to 2.29 m/s.

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2 years ago

A vehicle moves in a straight line with an

nordsb [41]

The solution to your problem is as follows:

<span>5km/h2 x 1 h/60 min x 1 min/60 sec x 1000m/km = 1.39 meters per second change each second.
</span>
Therefore, the speed change each second is <span>1.39 meters per second change each second.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!</span>

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3 years ago

URGENT!!!! WILL GIVE BRAINLIEST!!!!!! 15 POINTS

Artyom0805 [142]

It's the angle made by the incident ray when it's perpendicular to the surface. (Perpendicular lines are the lines that form a graph or like a 90-degree angle)

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3 years ago

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The Zika Virus is most dangerous to which group of people?

laiz [17]

Answer:

option D pregnant women

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3 years ago