1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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
You might be interested in
a plane flying at a certian altitude is observed from two points that are 3 miles apart. the Angles of elevation made by the two
aev [14]
The altitude of the plane is 8 miles
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In the right triangle ABC
tan(72°)=h/x
h=xtan(72°) -----> equation A
In the right triangle ABD
tan(55°)=h/(x+3)
h=(x+3)tan(55°) -----> equation B
equate equation A and equation B and solve for x
xtan(72°)=(x+3)tan(55°)
xtan(72°)-xtan(55°)=3tan(55°)
x[tan(72°)-tan(55°)]=3tan(55°)
x=3tan(55°)/[tan(72°)-tan(55°)]
Find the value of h
h=xtan(72°)
h=[3tan(55°)*tan(72°)]/[tan(72°)-tan(55°)]
h=8 miles
7 0
2 years ago
I need help on this question !!!
viktelen [127]

Answer:

C is the right answer I think

5 0
2 years ago
Find the distance between the two points rounding to the nearest tenth (if necessary).
Genrish500 [490]

Answer:

13 units

Step-by-step explanation:

(-1,5) and (4, -7)

To find the distance of two points, we use the distance formula:

d = \sqrt{(x_{2}-x_1)^2 + (y_2-y_1)^2 }

Let's plug in what we know.

d = \sqrt{(4 - (-1))^2 + (-7 - 5)^2 }

Evaluate the double negative.

d = \sqrt{(4 +1))^2 + (-7 - 5)^2 }

Evaluate the parentheses.

d = \sqrt{(5)^2 + (-12)^2 }

Evaluate the exponents.

d = \sqrt{(25) + (144) }

Add.

d = \sqrt{(169) }

Evaluate the square root.

d = 13

13 units

Hope this helps!

4 0
3 years ago
Read 2 more answers
*GIVING BRAINLIEST!!!*
Vlad1618 [11]
D is the correct answer
5 0
3 years ago
Read 2 more answers
Gina sells 216 cakes in the ratio small :medium:large 5:7:12. The profit for one medium cake is twice the profit for one small c
Rus_ich [418]
To answer this question you need to first set up the small, medium, large number of cakes as a ratio with a total. From here you will create a new ratio of the correct number of small medium and large Cakes sold using the total 216. The factor would be to multiply by nine. -Step 1 in picture. After this you would read what the relationship is between a medium and a small and the large and the small profits are - Step 2 in picture. After this you would represents the total profit based on the number of small medium and large cakes that were sold. Making this equal to L648.45. To find the profit for one small, you would then divide 648.45 by the 495 you got when you simplify the expression. The answer is L1.31.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Orthographic projection and isometric projection are two ways to show three-dimensional objects in a two-dimensional space, such
    12·1 answer
  • 1000 x n. What is the value of n
    9·2 answers
  • What year is this car
    6·1 answer
  • Please help me solve this problem who very does thank you so much may god bless you are a life saver. Also please help me with t
    6·1 answer
  • A right rectangular prism has a square base with side lengths of 5 inches and a height of 9 inches. What is the volume of the ri
    5·1 answer
  • The length of a football field including the end zones is 48 feet longer than four times the length of a tennis
    11·1 answer
  • Please help-help-help
    12·1 answer
  • (08.03)A restaurant manager recorded the number of people in different age groups who attended her food festival:
    12·1 answer
  • The length of a rectangle is 5cm more than its breadth . if the perimeter of the rectangle is 40cm , find the dimension of the r
    10·2 answers
  • The two-way table given shows the results from a survey of pet owners.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!