Answer:
Explanation:
We know the frequency and the velocity, both of which have good units. All we have to do is rearrange the equation and solve for
λ
:
λ
=
v
f
Let's plug in our given values and see what we get!
λ
=
340
m
s
440
s
−
1
λ
=
0.773
m
Answer:Increase
Explanation:
Given
You are holding 2 kg mass in each outstreched hand
If the masses are dropped then Moment of inertia will decease by 
Where m=2 kg
r=length of stretched arm
Since angular momentum is conserved therefore decrease in Moment of inertia will result in increase of angular velocity
as I
=constant
I=Moment of inertia
=angular velocity
These resistors are in series.
Think of it of where the electrons can travel in the system. If there are multiple options for where they can travel then it is parallel, if there are no split paths (only one option) then it is series.
An example of a combination of resistors in parallel: The image you have above, but replace R2 with a wire that continues to the right to a battery. Then resistors R1 and R3 are in parallel.
