Answer:
0.2m
The solution is in the picture
Answer:
The wave produced is a standing wave.
y' = [2ymax - kx] cos wt.
y max is maximum displacement, k is angular wave number, x is equal to the length L, w is angular frequency, t is time.
The time taken for the wave to travel to the ceiling and get reflected is given as:
t = 1/f = (2L)/nv. Where n =, 1,2,3, .... and v is wave speed, f is wave frequency.
Correct answer is A.
In a parallel circuit, the voltage is same across all the branches however the current in each branch is different and depends on the resistance of that branch. The higher the resistance, the lower the current.
In a series circuit, the voltage across each resistive element is different and depends on the resistance of that element. Higher the resistance, larger will be the voltage drop. However, the current throughout the series circuit is the same as there is only path in a series circuit.
Points to Remember:
1) In series circuit current remains the same and voltage varies
2) In parallel circuit voltage remains the same and current varies
The magnetic field is a field of magnetism that is in constant contact with everything and it is stronger at the poles of the earth. compasses point towards magnetic north which is a few miles away from true North. refrigerator magnets are much much stronger then the magnetic field so that is why they stick to metal. I do not know what the domain theory is.
The gravitational effect of the moon causes both the high tide and low tides.