Answer:This Answer is B
Explanation:
Longitudinal waves have the same direction of vibration as their direction of travel. This means that the movement of the medium is in the same direction as the motion of the wave. Some longitudinal waves are also called compressional waves or compression waves.
It’s says that the temperature in the room is 23C so the air temperature in the air would be 23C
Distance= Speed x Time Distance= 1.9m/s x 3.5h= 6.5km
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Answer:
The bearings are generally ceramic, metal (stainless steel or chrome), and some are hybrids—such as ceramic balls with stainless races and cages.
Explanation:
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Answer:
Gauge pressure rise = 292 Pa
Explanation:
We are given;
Diameter of the water droplet is d = 2mm = 0.002m
Radius = 0.002/2 = 0.001
Surface tension; σ = 73 mNm = 73 x 10^(-3)m
So we have to find the pressure rise.
Now, pressure rise is given by the formula ;
ΔP = P_inside - P_atmosphere = 4σ/r
Where r is radius.
Thus, plugging in the relevant values, we have;
ΔP = (4 x 73 x 10^(-3))/0.001 = 292 pa