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Ivahew [28]
3 years ago
15

I need help solving

Mathematics
1 answer:
zhenek [66]3 years ago
7 0
Super blurry can you resubmit or type out the question
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The force of repulsion, F Newton (N).,between particles is invesrly propotional to the square of the distance dm1find the partic
Fynjy0 [20]

Answer:

F_{2} = 80\,N

Step-by-step explanation:

Given the consideration of the inverse proportionality between force and distance, the following relationship is constructed and described below:

F_{1}\cdot r_{1}^{2} = F_{2}\cdot r_{2}^{2}

The force when the distance is halved is:

F_{2} = F_{1}\cdot \left(\frac{r}{0.5\cdot r} \right)^{2}

F_{2} = 4\cdot F_{1}

F_{2} = 4\cdot (20\,N)

F_{2} = 80\,N

5 0
3 years ago
[Given that a = 3, b = -5 and c = 6] evaluate each of the following expressions.
postnew [5]
Given ,

a = 3 , b = -5 , c=6

1) a(3c-b) = 3(3(6)-(-5)) = 69

2) ab^2-ac = (3)(-5)}^2-(3)(6) = (-15)^2-18 = 225-18 = 207
4 0
2 years ago
7 to the of power 4 explain
Nana76 [90]
7 x 7 x 7 x 7. 
  49 x 7 x 7
    343 x 7
     2,401

So 7 to the power of 4 is 2401.
6 0
3 years ago
Mark, Carlos, Ben, and Taj ran the 1,600-meter relay today at the track meet. If their times were 55.2 seconds, 54.34 seconds, 5
EleoNora [17]
Well if i understand correctly the answer would be all of them added together 
8 0
3 years ago
Read 2 more answers
Solve for b₂, in terms of the area of a trapezoid, A, the height, h, and b₁: A =1/2 (b₁ + b₂)h
nikklg [1K]

Answer: b₂=2A/h-b₁

Step-by-step explanation:

A =1/2 (b₁ + b₂)h

2A=(b₁ + b₂)h

2A/h=b₁ + b₂

b₂=2A/h-b₁

8 0
2 years ago
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