Final velocity = 5km/sec = 5000 m/sec
Initial velocity = 0, mass = 5kg and force = 500,000 N
F = m(Vf-Vi)/time
Time = m(Vf-Vi)/force = 5*5000/500000 = 0.05 seconds
So, it takes 0.05 sec to arrive at the speed of 5km/s.
First law is Conservation of Energy
Second is that entropy of an isolated system will always increase with time.
Entropy is the change of disorder through time. The best statement which relates to the 2nd law is C. Thermal energy flows from areas of higher to lower temperature
Answer:
Result magnetic field=
Explanation:
We are given:
r = 160m
Let us say the lightning bolt is a long straight conductor.
Therefore we will use the formula:
B = Uo•I / 2πr
Substituting figures in the equation, we have:
![B = [(4π*10^-^7 T•m/A)(1.00*10^4)] / (2π * 160)](https://tex.z-dn.net/?f=%20B%20%3D%20%5B%284%CF%80%2A10%5E-%5E7%20T%E2%80%A2m%2FA%29%281.00%2A10%5E4%29%5D%20%2F%20%282%CF%80%20%2A%20160%29%20)
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