Answer:
1917723.40119 m/s
Explanation:
m = Mass of deuteron = 
k = Boltzmann constant = 
T = Temperature = 
RMS velocity is given by

The RMS velocity of the deutrons is 1917723.40119 m/s
Answer:
Explanation:
mechanical advantage = output force / input force
= 740 N / 55 N
= 13.45
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Explanation: I got it right and i'm smart
Answer:
The period would be 0.0034 seconds
Explanation:
The d string has a frequency of 293 Hz when it is in tune
So the period of D string is 0.0034 seconds
Answer:
a) f = 809.5 Hz
, b) f = 1619 Hz
Explanation:
The condition for destructive interference from the speakers is
Δr / lam = Ф / 2π
λ = Δr 2π / π
We substitute
λ = 0.21 2 π/π
Lam = 0.42 m
Now let's use the ratio of the speed of sound and the wavelength and the frequency
v = λ f
f = v /λ
f = 340 / 0.42
f = 809.5 Hz
b) in this case the intensity is maximum
Lam = Δr 2π / 2π
Lam = 0.21 m
fF= v / lam
f = 340 / 0.21
f = 1619 Hz