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Damm [24]
2 years ago
7

Experimental tests have shown that hammerhead sharks can detect magnetic fields. In one such test, 100 turns of wire were wrappe

d around a 7. 0-m-diameter cylindrical shark tank. A magnetic field was created inside the tank when this coil of wire carried a current of 1. 5 a. Sharks trained by getting a food reward when the field was present would later unambiguously respond when the field was turned on.
SAT
1 answer:
White raven [17]2 years ago
5 0

Answer:

Explanation:

B = µo*N*I/2r  

So B = 4πx10^-7*150*1.6/2*3.5 = 4.31x10^-5T

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You are studying the population growth of a species of fish. Assuming unlimited resources, no predators, and a constant per capi
ArbitrLikvidat [17]

The projected population size in 2030 will be : ≈ 44159

First step : determine the population growth rate

Gr = change in population / time

    = ( 1500 - 1100 ) / 1 year

    = 400 = 36%

<h3>Determine the projected population size </h3>

applying Malthus's population projection.

Pp = P₁ ( 1 + r )ⁿ

where ; P₁ = 1500, r = 0.36 , n = ( 2030 - 2019 ) = 11 years

Pp = 1500 ( 1 + 0.36 )¹¹

    = 1500 ( 29.439 )

    = 44158.5  ≈ 44159

Hence we can conclude that the projected population size as at 2030 is 44159

Learn more about projected population : brainly.com/question/25896797

7 0
2 years ago
A worker was attempting to correct an electrical problem involving two non-operational lamps. He proceeded to the area
MrRissso [65]

Answer:

He could have shut off  the power first and de-energize the circuits in order to prevent being electrocuted.

Explanation:

Electrical Safety is very important, <em>especially for those working in such hazardous situations. </em>Almost all our things in the society are electrically-operated, thus it even becomes relevant to have an idea on how we can prevent from obtaining an electrical shock or burns due to faulty electrical tools.

In the worker's scenario above, it is clear that he did not shut off the power at the circuit breaker panel. This is the most important thing that one must include in his plan when attempting to correct an electrical problem. You must find where the electrical switch, fuses and circuit breakers are at first. Once you find their location, you have to turn them off (even if the circuits are of low-voltage).<u> In order to make sure that they are really turned off, test the circuits first. This will help you ensure that they are, indeed, de-energized.</u>

6 0
3 years ago
If someone has a risk factor for bullying, what does that mean?
Alex787 [66]
They will definitely perpetrate or experience bullying
4 0
2 years ago
If you wanted to know how big a tiger is, which measurements would you use?
AveGali [126]
Feet............................................
8 0
3 years ago
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How much money do people without a high school diploma make per year, on
xxMikexx [17]
It’s c normally without a highschool diploma you make around $24,000 annually
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3 years ago
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