Answer:
<u>Resultant</u><u> </u><u>force</u><u> </u><u>is</u><u> </u><u>2</u><u>0</u><u> </u><u>N</u>
Explanation:
Resolving vertically:
Resolving horizontally:
Resultant force:
Answer:
Number of turns in secondary is 20
Current in primary is 0.96 A
Explanation:
We have given number of turns in primary
Voltage across primary of transformer
Current in secondary coil
Voltage across secondary
For transformer we know that
So
So number of turns in primary is 20
Now
Current in primary of transformer is 0.96 A
Answer:
The velocity of the boat and fisherman after he lands in the boat is 3.812m/s
Explanation:
We will solve this question on the general Derivation for general case of a man jumping n the boat
m = Mass of the man = 80kg
M= mass of the boat 37.5kg
V(m, g) = Velocity of man with respect to ground = 5.6m/s
V(b , g) = Velocity of boat with respect to ground = Vo = 0m/s ( rest)
velocity of the boat and fisherman after he lands in the boat = V1
As there is no external force acting on the man then we can apply conservation of the Linear Momentum.
m*V(m, g) + M*Vo = (M+m)V1
On substituting the values we get
V1 =
V1 = = 3.812 m/s
Therefore the velocity of the boat and fisherman after he lands in the boat is 3.812m/s.
Streams of glowing gas that shoot out from the sun is called Prominence. It is a loop of incandescent, cool gas that extends way above the sun's edge can be viewed from Earth. These streams usually follow the magnetic field lines that are curved from an area of on magnetic polarity to an area of the opposite magnetic polarity. These streams can last for hour or even weeks.
Answer:
Explanation:
When a light bulb connects to an electrical power supply, an electrical current flows from one metal contact to the other. As the current travels through the wires and the filament, the filament heats up to the point where it begins to emit photons, which are small packets of visible light.