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sp2606 [1]
3 years ago
13

a wire loop has an area of 0.12 m^2 and the magnetic field through it increase from 0 to 0.20 T in 0.30s. What is the induced em

f in the loop
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
6 0
Induced emf = -NA (ΔФ/Δt)

N = 1 (assuming its 1 loop), ΔФ = 0.2-0 = 0.2 T, Δt = 0.3 sec, A = 0.12 m^2

Therefore,

Induced emf = -1*0.12*(0.2/0.3) = -0.08 V
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SOMEONE EASE ANSWER NUMBER 4?
nlexa [21]

On analyzing the question we can say that the angle ∠JKM of the triangle ΔJKL would be 42 as line MK bisects ∠JKL into ∠JKM & ∠MKL.

From the question it follows that line MK bisects angle ∠JKL into ∠JKM & ∠MKL where M is the point in the interior of ∠JKL.

Therefore, as we have given  m∠JKL = 84 & m∠MKL  = 42

and we have to find m∠JKM , we will simply write the equation as follow

m∠JKL = m∠JKM + m∠MKL

Inserting values we get,

84 = m∠JKM + 42

m∠JKM = 42

Hence, angle m∠JKM  of the triangle ΔJKL is  42.

Learn more about questions related to triangles and their angles here

brainly.com/question/13273388

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5 0
2 years ago
7 / 336 in long divi​
Alexus [3.1K]

Answer: 48 r0

Step-by-step explanation:  JUST IMAGINE THE LINES

  7 ÷3 3 6

− 0    

 3 3  

− 2 8  

   5 6

 − 5 6

     0

8 0
3 years ago
There are 30 students in a class, including 16 boys. The ratio of girls to boys would be 7 over 8.
Genrish500 [490]

Answer:

i dont understand- theres 3 ways u can put them tho 7:8 , 7 to 8 , or 7/8

Step-by-step explanation:

5 0
3 years ago
X^2 - 2x = 15 how do I solve this quadratic method?<br>I am stuck on it.... please help<br>​
Anarel [89]

Answer:

(x - 5)(x + 3)

Step-by-step explanation:

to solve x² - 2x = 15, we need to get all the terms on one side so we can solve the quadratic equation using factoring. to do this, we subtract 15 from both sides

x² - 2x = 15

- 15         -15

x² - 2x - 15 = 0

now we can factor. we need 2 numbers that when multiplied together give us -15, and when those 2 numbers are added together we get -2

because we have a -15, we can assume that one number must be negative and the other positive, as a negative times a postive is a negative.

we can use 3 and -5 as factors and test it out. we put x in front because we have an x²

(x - 5)(x + 3) < we can FOIL to check to see if this is correct. its not mandatory to check but when you arent sure of the answer you can FOIL it out

FOIL stands for: First, Outside, Inside, and Last terms

F: (x - 5)(x + 3) = x²

O: (x - 5)(x + 3) = -3x

I: (x - 5)(x + 3) = 5x

L: (x - 5)(x + 3) = -15

x² + 3x - 5x - 15 < subtract 3x from 5x

x² - 2x - 15

this checks out, so our answer is (x - 5)(x + 3)

6 0
3 years ago
Read 2 more answers
Classify the triangle by its sides. please answer asap. thank you so much!!​
gizmo_the_mogwai [7]

Answer:

The answer is Scalene triangle.

Step-by-step explanation:

A scalene triangle is a triangle that has sides that are not the same.

4 0
3 years ago
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