Explanation:
A manometer is a device that measures air pressure using a container with a "U"-shaped tube open at one or both ends. In a closed manometer, a sample of gas is introduced into one end, which is then capped. ... This pressure represents the positive or negative difference between the gas pressure and atmospheric pressure
Answer:
a) 5.22 m/s
b) 31.4 %
Explanation:
f = rotating speed = 15 rpm = 15/60 =0.25 rps
m = Mass flow rate of air = 42000 kg/s
v = Tip velocity = 250 km/h = 250/3.6 = 69.44 m/s
W = Work output = 180 kW
A = Swept area of wind turbine
r = Radius of wind turbine
η = Efficiency
∴ The average velocity of the air is 5.22 m/s
∴ Conversion efficiency of the turbine is 0.314 or 31.4 %
Answer:
Explanation:
1 cm =10mm so 800cm is equal to 8000mm.so b is the correct answer
<span>Accretionary
wedge. The accretionary wedge is formed from several sediments: marine
sediments, but also erosional materials from volcanoes. ocean floor basalts,
volcanic island masses, pelagic sediments, trench sediments and other materials
transported by gravity. All these sediments are in the non-subducting tectonic
plate of the Earth.</span>
Answer:***No statement but in fact the discharge of clouds and ground electric current is what cause lightining