Spread or you can say forward
Energy ,E= Sqrt{Energy intensity*Speed of light*Magnetic constant}
Where,
Energy intensity = 1.40 kW/m^2 = 1400 W/m^2
Speed of light = 3*10^8 m/s
Magnetic constant = 4pi*10^-7 H
Therefore,
E= Sqrt{1400*3*10^8*4*pi*10^-7} = 726.49 v/m
Now,
Emax = E*sqrt (2) = 726.49*Sqrt(2) = 1027.41 v/m
The μs between the clock and floor is 650(M*g) and the μk between the clock and the floor is 560(M*g)
This question is stated in a complicated way, but all the information we need is right there waiting to be untangled.
We'll start the clock when Todd arrives. At that time:
-- Kate has 5 done. Todd has none yet. Todd is 5 units behind.
From then on:
-- The clock is running. Kate adds 4 an hour to her total. Todd adds 5 an hour.
-- She started out 5 ahead of Todd when he arrived, but Todd does 1 more than Kate every hour.
-- So Kate's 'lead' shrinks by 1 every hour.
-- So <em>Todd will catch up with Kate</em> <em>in 5 hours</em>.
That's the answer to the question ... How long ? It doesn't ask us how many stockings have been filled, but that's easy for us to figure out:
-- Kate had 5 done when the clock started. She fills 4 every hour. After 5 hours, she has (5 x 4) = 20 more filled, and a total of 25 ready to sell.
-- Todd started out with none done. He fills 5 every hour. After 5 hours, he has (5 x 5) = 25 filled and ready to sell. He has caught up with Kate in 5 hours.
Atoms have an overall charge that is neutral because atoms have equal number of positive protons and negative electrons thus they cancel each other out. This always true for atoms that are stable and in equilibrium.
