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Mashcka [7]
3 years ago
9

An environmental group wants to sink a ship off the coast to create an artificial reef. They find that they must get a permit fr

om the Environmental Protection Agency in order to be allowed to do this. Which statement best describes why a permit would be required.
A. The environmental protection agency does not trust the environmentalists.
B. The environmental protection agency is trying to make money by selling the permits.
C. The environmental protection agency needs to inspect the ship and make sure it is safe before giving the ok.
D. The environmental protection agency uses permits to control the actions and beliefs of some environmental groups.
Physics
2 answers:
Rom4ik [11]3 years ago
5 0

Answer:

C. The environmental protection agency needs to inspect the ship and make sure it is safe before giving the OK.

Explanation:

  • The EPA is an independent environmental agency of the united states environmental protection and operating since the 1970s, it has headquarters in Washington D.C and has 27 labs and is responsible for the environmental assessment research and education.  
  • It maintains and enforces a variety of laws and standards in accordance with the state, tribal's and the local govt by monitoring and enforcing responsibility.
bazaltina [42]3 years ago
4 0

Answer:

The environmental protection agency needs to inspect the ship and make sure it is safe before giving the ok.

Explanation:

this agency is doing its job due to they have to be sure that this ship will be sure for the marine life.

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A worker pushes horizontally on a large crate with a force of 265.0 N and the crate moved 4.3 m. How much work was done?
trapecia [35]

Answer:

<h2>1139.5 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

work done = 265 × 4.3 = 1139.5

We have the final answer as

<h3>1139.5 J</h3>

Hope this helps you

8 0
2 years ago
Which is an example of a molecule?
AURORKA [14]

An example of a molecule:

b) Protein

4 0
3 years ago
Read 2 more answers
A yo-yo of mass M has an axle of radius b and a spool of radius R. Its moment of inertia can be taken to be MR2/2 and the thickn
kow [346]

Answer:

The tension in the cord is T=\frac{MR^{2}g }{2b^{2}+R^{2}  }

Explanation:

Given:

M = mass

b = radius

R = spool of radius

The equation is:

bT=(\frac{MR^{2} }{2} )(\frac{a}{b} )\\T=\frac{MR^{2}a }{2b^{2} } (eq. 1)

The sum of forces in y:

∑Fy = Mg - T = Ma

Mg=(M+\frac{MR^{2} }{2b^{2} }  )a\\a=\frac{2b^{2}g }{2b^{2}+R^{2}  }

Replacing in eq. 1

T=\frac{MR^{2} }{2b^{2} } (\frac{2b^{2}g }{2b^{2} +R^{2} } )\\T=\frac{MR^{2}g }{2b^{2}+R^{2}  }

3 0
3 years ago
Read 2 more answers
A hand lifts a block vertically upward at constant velocity. The work done by gravity on the block ____ if the system consists o
adelina 88 [10]

Answer:

If the system consists of the block only, the work done by the gravity is negative.

If the system consists of the block and the earth the work done by the gravity is zero.

Explanation:

If the system consists of the block only, then the system experiences two external forces: one exerted by the hand that lifts the block vertically upward and other exerted by the earth (gravity), which is opposed to the movement of the system, so the work done by gravity is negative.

On the other hand, if the system consists of the block and the earth, then only exists a external force which is the exerted by the hand. So, the force exerted by gravity is zero.

6 0
3 years ago
A block of concrete has a mass of 48kg a crane lifts the block to a height of 12m above the ground calculate the gravitational p
Afina-wow [57]

Answer:

5760 J

Explanation:

From the question given above, the following data were obtained:

Mass of block = 48 kg

Height (h) = 12 m

Gravitational field strength (g) = 10 N/Kg

Gravitational potential energy (PE) =?

The gravitational potential energy stored by the block can simply be obtained as follow:

PE = mgh

PE = 48 × 10 × 12

PE = 5760 J

Therefore, the gravitational potential energy stored by the block is 5760 J

3 0
3 years ago
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