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Rom4ik [11]
3 years ago
13

Needing help explaining these!!! (2 pics attached)

Physics
1 answer:
Dmitriy789 [7]3 years ago
6 0

#28

Fluid always flow from higher pressure to lower pressure so as we can see the figure liquid is coming out of the spray bottle so it clearly shows that the pressure outside the tube will be lower than the pressure inside the tube.

#29

Momentum is defined as product of mass and its velocity

so here we will have

P = mv

here we have

m = 38 kg

v = 2.2 m/s

so we will have

P = (38 kg)(2.2 m/s)

P = 83.6 kg m/s

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Match each item with the clean water regulation it describes. (2 points)
Leona [35]

The correct match of each item to the clean water regulation it describes is as follows:

  • Regulates pollutants discharged into surface waters: Clean water act
  • Covers both surface and ground waters: Safe drinking water act
  • Authorizes the EPA to establish minimum standards for tap water: Safe drinking water act
  • Funds sewage treatment plants: Clean water act

<h3>What are the functions of clean water regulation?</h3>

Clean Water Act (CWA) is a regulatory body that establishes the basic structure for the regulation of pollutants discharge and maintenance of quality standards of the surface waters.

On the other hand, the Safe Drinking Water Act was founded to oversee the protection of the quality drinking water. The regulatory body is primarily concerned with potable water all waters, whether from above ground or underground sources.

Therefore, the correct match of each item to the clean water regulation it describes is as follows:

  • Regulates pollutants discharged into surface waters: Clean water act
  • Covers both surface and ground waters: Safe drinking water act
  • Authorizes the EPA to establish minimum standards for tap water: Safe drinking water act
  • Funds sewage treatment plants: Clean water act

Learn more about clean water regulation at: brainly.com/question/2142268

#SPJ1

6 0
2 years ago
Do acids or bases turn litmus paper red?
Tom [10]
Base => Blue

aciD => reD
5 0
3 years ago
A block of wood measuring 2.75 cm x 4.80 cm x 7.50 cm has a mass of 84.0 g. will the block of wood sink or float in water?
KIM [24]
The volume of the block of wood is given by length × width ×height
 = 2.75 × 4.80 × 7.5
 = 99 cm³
Density is given by mass/volume
Thus = 84.0 g/ 99 cm³
         = 0.848 g/cm³
Hence;  since the block is less dense than water (1 g/cm³) it will float
6 0
3 years ago
Which word is most closely associated with uniformitarianism
stellarik [79]
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5 0
3 years ago
What is the maximum speed with which a 1200-kg car can round a turn of radius 93.0 m on a flat road if the coefficient of static
Mashcka [7]

Answer:

The maximum speed is 23.39m/s

Explanation:

Centripetal force Fc is the force acting on a body moving in a circular path and directed towards the centre of the path.

If F = ma

centripetal acceleration a = v²/r

Centripetal force Fc = mv²/r ... (1)

where;

m is the mass of the object

r is the radius.

Since there is friction between the tyre and the road, then the frictional force Ff acts between the surface and this frictional force is the one that tends to oppose the moving force (centripetal force)

Ff = μsR where

μs is the coefficient of static friction

R is the normal reaction which is also equivalent to the weight of the car i.e R = W = mg

Ff = μsmg ... (2)

For the body to be static, the centripetal force must be equal to the frictional force i.e Fc = Ff

mv²/r = μsmg

Making v the subject of the formula;

v²/r = μsg

v² = μsgr

v = √μsgr

Given the following data;

μs = 0.6

g = 9.81m/s²

r = 93.0m

v = √0.6×9.81×93

v = √547.398

v = 23.39m/s

7 0
3 years ago
Read 2 more answers
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