Answer:
O Transformer
Explanation:
A transformer is a device for increasing or decreasing voltage through electromagnetic induction. It is very used in power transmission where alternating currents can be stepped up or down for house hold usage.
- Electromagnetic induction is the process of generating current through magnetic fields.
- It is made up of primary and secondary coils which helps to change voltage in the presence of magnetic filed at the core.
- A transformer can either be a step up or step down device.
Since the mirror is plane, the image will be formed behind the mirror. The distance will be the same as that of the distance of the object from the mirror and the height will just be the same.
So, Ruff's image will be 3 m behind the mirror and 50 cm tall.
Answer:
I don't think that you would pass the class.
Explanation:
Because you almost have as much failing marks as passing marks, if you could weren't as absent and you had more passing than failing marks than you would pass, in this case you wouldn't.
Given data :
Work (W) = 1200 J ,
distance (S) = 20 m ,
Determine the Force applied to the box = ?
Work done = F. S
1200 = F . 20
F = 60 N
<em>Force applied to the box is 60 N</em>