Answer
given,
time = 10 s
ship's speed = 5 Km/h
F = m a
a is the acceleration and m is mass.
In the first case
F₁=m x a₁
where a₁ = difference in velocity / time
F₁ is constant acceleration is also a constant.
Δv₁ = 5 x 0.278
Δv₁ = 1.39 m/s

a₁ = 0.139 m/s²
F₂ =m x a₂
F₃ = F₂ + F₁
Δv₃ = 19 x 0.278
Δv₃ = 5.282 m/s
a₃=Δv₂ / t

a₃ = 0.5282 m²/s
m a₃=m a₁ + m a₂
a₃ = a₂ + a₁
0.5282 = a₂ + 0.139
a₂=0.3892 m²/s
F₂ = m x 0.3892...........(1)
F₁ = m x 0.139...............(2)
F₂/F₁
ratio = 
ratio = 2.8
Answer:

Explanation:
B at point 7.0 cm radially outward is to find out?
Now for field strength in case of parallel plates in given as



For the second part as Capacitor is fully charged no more flow of current could take place hence
I= Current =o
so B = 0
Answer:
a round shape. It has its own gravity to pull itself into a round shape
Answer:
False
Explanation:
The direction of magnetic field on a current carrying conductor can be determined by the Fleming's right hand rule where
- The thumb represents the direction of motion
- the index finger represents the direction of field.
- The middle finger is the direction of induced current.
When two conductors carrying currents flowing in opposite direction, the magnetic field will be in the same direction hence they will repel.
<u><em>When the currents in them flow in same direction, then it means the magnetic field will be opposition and there will be a force of attraction between the conductors.</em></u>
Answer:
<h2>yes </h2><h3><u>bt</u><u> </u><u>pic</u><u> </u><u>nyi</u><u> </u><u>clear</u><u> </u><u>is</u><u> </u><u>Lia </u><u>pata</u><u> </u><u>nyi</u><u> </u><u>lag</u><u> </u><u>taha</u></h3>