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Vinil7 [7]
3 years ago
8

The United States uses 1.4×1019 J of electrical energy per year. Assume, that all this energy came from the fission of 235U, whi

ch releases 200 MeV per fission event. Assume that all fission energy is converted into electrical energy. Part A How many kilograms of 235U would be used per year? Express your answer to two significant figures and include the appropriate units. m m = nothing nothing Request Answer Part B How many kilograms of uranium would have to be mined per year to provide that much 235U? (Recall that only 0.70% of naturally occurring uranium is 235U.) Express your answer to two significant figures and include the appropriate units.
Mathematics
1 answer:
tino4ka555 [31]3 years ago
6 0

Answer:

r55

Step-by-step explanation:

all this energy came from the fission of 235U, which releases 200 MeV per fission event. Assume that all fission energy is converted into electrical energy. Part A How ma

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Write the equation of a sine function that has the following characteristics.
slava [35]

Answer:

\displaystyle y = 7\sin(9\pi(x +   {1}/{4}) )

Step-by-step explanation:

we are given

  • Amplitude:7
  • Period:9π
  • Phrase shift:¼

remember that,

\displaystyle y = A \sin(B(x + C) )+ D

where A is the Amplitude

B is the Period

C is the Phase shift

D is the vertical shift

note that, since D isn't given we'll take it 0

altogether substitute:

\displaystyle y = 7\sin(9\pi(x +   {}^{1}/_{4}) )+ 0

hence,

our equation is

\displaystyle y = 7\sin(9\pi(x +   {}^{1}/_{4}) )

and we are done!

5 0
3 years ago
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Help please! :) Its really late and cant process that much math, i did the others, but this first one confused me.
Vera_Pavlovna [14]
Use pythagorean theorem to find the bottom side of the left triangle.
12^2+b^2=15^2
144+b^2= 225
b^2= 81
b=9
you will then subtract 9 from 25 to get 16
area from the triangle on the right
A=(1/2)16*12
A= 96 in^2
then for the triangle on the right
A= (1/2)12*9
A= 54 in^2
then add the two areas together

Total Area= 150 in^2
4 0
3 years ago
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Let f(x)=2x+2. Solve f^-1(x) when x=4
Gre4nikov [31]
F⁻¹(x) stands for the invers of function f(x). The inverse of f(x) is equal to x. We need to solve for x.

solve for x
f(x) = 2x + 2
2x + 2 = f(x)
2x = f(x) - 2
  x = \dfrac{f(x)-2}{2}
f⁻¹(x) = \dfrac{x-2}{2}

Determine the value of f⁻¹(x) when x = 4
f⁻¹(x) = \dfrac{x-2}{2}
f⁻¹(4) = \dfrac{4-2}{2}
f⁻¹(4) = \dfrac{2}{2}
f⁻¹(4) = 1
When x = 4, the value of f⁻¹(x) is equal to 1
4 0
3 years ago
What is the equation of the line that passes through the points -1, 3/2 and 1/2, 1/2
masha68 [24]

Answer:A

Step-by-step explanation:

I did my test and this is answer maybe

7 0
3 years ago
Pablo and Johanna have to do a yearlong study for their biology course. After some discussion, they decide to try comparing thei
tensa zangetsu [6.8K]

Answer:

The type of food they are feeding the dog.

Step-by-step explanation:

The independent variable is the test variable of the experiment. Therefore, you can see that Pablo and Johanna both use different types of food to feed their dogs, to see which one grows faster. The growing faster is the dependent variable because how fast the dogs grow is what is being measured.

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4 years ago
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