How is heavy water different from normal water
2 answers:
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Answer:
a) , b)
, c)
Explanation:
a) The system have a simple armonic motion, whose position function is:
The velocity function is determined by deriving the position function in terms of time:
The acceleration function is found by deriving again:
Let assume that . The following nonlinear system is built:
System can be reduced by divinding the second and third expressions by the first expression:
Now, the last expression is divided by the first one:
b) The mass of the block is:
c) The phase angle is:
The amplitude is:
Answer:
electrical power is converted by the speaker into sound power 17.25 %
Explanation:
given data
radius = 0.1158 m
power needed = 27.0 W
average sound intensity = 25.6 W/m²
solution
we know sound intensity that is
I = ...................1
power = intensity × area
Power = 25.6 × 4 ×π×r²
Power = 25.6 × 4 ×π×0.1158²
power = 4.313 W
so here electric power % into sound power
= × 100
= 17.25 %
Answer:
V = 0.714m/s
Explanation:
Full solution calculation can be found in the attachment below.
From the principle of conservation of linear momentum, the sum of momentum before collision equals the sum of momentum after collision.
Before collision only the train had momentum. After the collision the train and the boxcars stick together and move as one body. The initial momentum of the train is now shared with the boxcars as they move together as one body. The both move with a common velocity v.
See the attachment below for the solution calculation.
