To solve this problem we need to apply doppler equation,
Our values are:
Doppler equation is given by,
Substituting,
Wavelenght is equal to,
We can now find the distance by,
b) We can find at what angles would sound first cancel through the same equation of wavelenght,
Uhh it is used to detirmine heat
Answer:
Explanation:
1 psi = 6894.76 Pa
P = 184 psi = 12.686 x 10⁵ Pa .
Temperature T = 95⁰F = 35⁰C= 308 K
volume V = 18 ft³ = 18 x 0.0283168 m³
= .51 m³
From the gas law
PV/RT = n where n is mole of gas
= 12.686 x 10⁵ x .51 / 8.31 x 308
= 252.78 gm mole
= 252.78 x 32 gm
= 8.08896 kg
= 2.20462 x 8.08896 lb
= 17.833 lb
= 17.833 / 32 lbf
= .5573 lbf
weight of tank = 150 lbf
Total weight = 150 + .5573
= 150.5573 lbf .
Answer:
Power = Work / Time
P = 400 kg * 9.8 m/s * 4.5 m / 3600 sec = 4.9 J/s = 4.9 Watts
Also, 4.9 Watts / (746 Watts / Horsepower) = .0066 Hp
The magnitude of acceleration is
(change in speed) divided by (time for the change) .
Between the two points on the graph ...
-- Find the change in speed. (usually the y-axis)
-- Find the change in time. (usually the x-axis)
Divide (change in time) by (change in speed) between the two points.
That quotient is the average magnitude of acceleration during that time.
If the graph happens to be a straight line, then the magnitude of acceleration
is just the slope of the line.
