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uysha [10]
3 years ago
13

20 POINTS PLZ HELP- Describe how two type of land use within your watershed can influence the water quality in Rivers in your ar

ea?
Physics
1 answer:
JulsSmile [24]3 years ago
7 0

Answer:

Pollution Sources & Land Use. Imperviousness & Water Quality ... protect streams, rivers, and ground water, land use practices can be implemented ... In built-up areas with pavement and buildings, little rainfall soaks into the soil Ground water flows slowly into streams, usually over a period of months,

Explanation:

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Describe how the properties of sound waves change as they spread out in a spherical pattern.
guapka [62]
They go up and down
4 0
2 years ago
A 34.0 kg sled is accelerated by a constant force of 45.0 N from 2.00 m/s to 16.00 m/s. For how long was the force acting on the
goblinko [34]

Answer: 10.6 sec

Explanation:

Because I got it right on my quiz :D

also because you can use the impulse momentum formula, Ft=m(triangle)v

so basically u do 16m/s-2m/s=14m/s and thats your triangle v (change in velocity) then multiply 14 times the mass, which is 34. Thats 476, so now you have ft=476, and you know F, the force, so all you have to do is divide 476 by 45, and you get like 10.5777777 which rounds up to 10.6!

4 0
3 years ago
Calculate the weight in Newtons of a person who has a mass of 69 kg.
BaLLatris [955]
I believe the answer would be 676.65885 rounded to 676.7
5 0
3 years ago
Read 2 more answers
A single-slit diffraction pattern is formed on a distant screen. Assuming the angles involved are small, by what factor will the
garik1379 [7]

Answer:

c : it wil be cut in half.

The pattern is formed on a distant screen so we can use the Fraunhofer difracction for a single slit. The formula of the width of the central bright spot is given by Δx = (2λz)/a, where λ is the wavelength and a is the width of the slit. So if the inicial width (a_1) is doubled (a_2= 2 x a_1),the width of the central spot will be cut in half Δx = (2λz)/a_2 = (2λz)/2xa_1 .

7 0
3 years ago
A body of mass 8 kg moves in the xy-plane in a counterclockwise circular path of radius 7 meters centered at the origin, making
bagirrra123 [75]

Answer:

F_{cp}=88.43N

Explanation:

The equation for centripetal force is given by Newton's 2nd Law:

F_{cp}=ma_{cp}

The equation for centripetal acceleration is a_{cp}=r\omega^2

If the object makes one revolution (an angle of 2\pi rad) every 5 seconds it means that its angular velocity is \omega=\frac{2\pi rad}{5s}.

Putting all together, and for our values:

F_{cp}=ma_{cp}=mr\omega^2=(8kg)(7m)(\frac{2\pi rad}{5s})^2=88.43N

3 0
3 years ago
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