Answer:
The amount of work must be do to rotate the bar magnet is 151.2 J
Explanation:
Given:
Magnetic moment
Magnetic field T
To find work do to rotate the bar magnet,
From the formula of work done in case of magnetic field,
Here changes 0 to 180
But
J
Therefore, the amount of work must be do to rotate the bar magnet is 151.2 J
Answer:
2
a) 109, 111, 113, 115
b) An odd number always follows an even number. So there can't be four consecutive even numbers. 2009, 2011, 2013, 2015 are the next odd numbers between 2008 and 2030.
c) 995, 997, 999, 1001, 1003, 1005, 1007
3
a) The sum of two odd numbers will result in an even number.
b) The sum of two even numbers will result in an even number.
c) The sum of an odd and an even number will result in an odd number.
Explanation:
<em><u>GIVEN </u></em><em><u>:</u></em>
Work done(W) = 40 J
Time(t) = 4 s
Power (P) = ?
<em><u>We </u></em><em><u>know </u></em><em><u>that:</u></em>
W = P×t
Therefore,
P= W/t
=40/4
= 10 W
<em><u>Hope </u></em><em><u>it </u></em><em><u>helps</u></em>