Answer:
Ratio will be 
Explanation:
We have given that intensity level is increases from 23 dB to 61 dB
We know that level of intensity is given by
So 
------eqn 1
And 
------eqn 2
Subtracting eqn 1 from eqn 2
Answer:
A
Explanation:
Well, the electricity starts it's move from the positive terminal to the negative terminal, So it's clockwise.
and the resistances ain't parallel, so the gon be in series.
your answer gon be choice A
100N to the left. Newton's 3rd law action and reaction
Answer:
1. Increase Efficiency: Insulating the condensate or hot water return lines reduces heat loss from the water returning to the boiler. The hotter the water returning to the boiler is, the quicker it is to convert back to steam, which takes less energy to accomplish.
Explanation:
Answer: The smallest effort = 300N
Explanation:
Using one of the condition for the attainment of equilibrium:
Clockwise moment = anticlockwise moments
900 × 1 = 3 × M
Where M = the weight of the strong man
3M = 900
M = 900/3 = 300N
Therefore, 300N is the smallest effort that the strongman can use to lift the goat
