Answer: Zero
Explanation:
Gauss's law states that the total magnetic flux through a closed surface is equal to zero. Because the magnetic field lines are in continuous loops, so all closed surfaces have magnetic field lines coming out, hence the net magnetic flux is zero.
The time interval in which your friend beats you is determined as 4.2 minutes.
<h3>Time in which you catch up with your friend</h3>
The time interval in which your friend beats you is determined from the principle of relative velocity.
(Va - Vb)t + (Vc - Vd) = d
(6 - 3)t - (6 - 9)t = 1500
6t = 1500
t = 1500/6
t = 250 s
Time in minutes = 250 s/ (60s/min) = 4.2 minutes
Thus, the time interval in which your friend beats you is determined as 4.2 minutes.
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This question is wrong because in momontum we will write acceleration instead of speed. suppose acceleration is 5m/s2 then
P= ma
then put values
Answer:
It is given that the weight of the person is 102 N
We have the force that shall be needed to being the man out in minimum amount of time shall correspond to the maximum tension that can be developed
Thus using Newton's second law we obtain the acceleration that the man shall attain
Now using second equation of kinematics to obtain time 't' we get