Step-by-step explanation:
A) as you can see there is no current flowing in a bar magnet so (incorrect)
B) Lines of magnetic field is going in A-->B direction so it have starting and ending points.(incorrect)
C) Yes whenever a magnetic object is placed near the another magnetic object they either attract or repell so they have a force in a form of push and pull [correct]
D)No because magnetic field lines goes from North--> South so A is the South pole [ incorrect]
E) Yes it will point always towards North pole of the magnet [correct]
F) yes it depends upon the density of field lines[correct]
G)No the near the magnet is it becomes more stronger as compared to magnet kept far.(incorrect)
So option C E F are correct
Hope this helps
Have a great day
Answer: 1/15
Step-by-step explanation:
1/15 = 0.6......
Answer:
$21
Step-by-step explanation:
$20 for the 500 minutes
We still have to pay for 10 minutes.
10 cents per minute.
10centsx10 minutes.
100 cents, also known as 1 dollar.
$20 plus $1 means the answer is $21.
Hope this helps!
-AxekickNebulite
9+8=17
10+10=20
5+5=10
9+9=18
7+7=14
Answer:
The critical points of the function
f(x) = 2x(4 - x)³
are x = (1, 4)
Step-by-step explanation:
Given the function
f(x) = 2x(4 - x)³
To find the critical points, we differentiate f(x) to obtain f'(x), and then find the zeros of the resulting quadratic function.
Now, differentiate f(x).
f'(x) = 2(4 - x)³ + 2x(-1)×3(4 - x)²
= 2(4 - x)³ - 6x(4 - x)²
= 2(4 - x)²(4 - x- 3x)
= 2(4 - x)²(4 - 4x)
f'(x) = 8(4 - x)²(1 - x)
Now we set f'(x) = 0 and solve
8(4 - x)²(1 - x) = 0
=> 8(1 - x) = 0
=> 1 - x = 0
=> x = 1
Or
(4 - x)² = 0
x = 4 twice.
So x = (1, 4)
Therefore, the critical points are x = (1, 4)