Wave D has the same wavelength as wave A, but the amplitude is lower. The answer is Wave D.
Step up transformer is a device which is used to step up the voltage which is input with some value.
This is based upon the principle of mutual inductance and in this the voltage input and voltage output is different because of number of turns.
Here if ideal transformer is given then power input and power output of the transformer must be same as there is no power loss in ideal transformer.
So we can write

here
= 73.37 A
= 4623 V
= 105033 A
now using above equation we will have

solving above we will have

So v=d/s so the answer is 6/3.2 so the answer is 1.87m/s
Answer:
The amount of work done in order to lift the box is 
Explanation:
Given the weight of each box is 
And the man lifts boxes at a height of 
We need to find the amount of work done.
The amount of work done is the product of applied force
that causes the displacement
.
In our problem force is
and displacement is
.
Now, work done

So, the amount of work done in order to lift the box is 
Answer:

Explanation:
It is given that,
Radius of the circle, 
The area of the circle is given by :



or

As there is no uncertainty given in the radius of the circle. So, the area of the circle is
. Hence, this is the required solution.