As per bernoulli's principle
here
= pressure upwards
= pressure downwards
= velocity of air upwards
= velocity of air downwards
now from this equation we can say that the pressure difference will be
now the force due to this pressure difference will be
so this is the above force which is given above
Answer:
0.52°
Explanation:
refractive index for blue light, nb = 1.640
Refractive index for red light, nr = 1.595
Angle of incidence, i = 30°
Let the angle of refraction for blue light is rb and the angle of refraction for red light is rR.
By use of Snell's law for blue light
By use of Snell's law for red light
The angle between the two beams,
θ = 18.27° - 17.75°
θ = 0.52°
Answer:
<h2>1)Straw : When a man sucks up the fluid from straw the pressure inside is moderately low and accordingly atmospheric pressure outside powers up the fluid into straw. 2)Vacuum cleaner : When a vacuum cleaner is exchanged on, the pressure inside tumble off because of air inside.</h2>
Vector trigonometry can be used for this problem. Since the horizontal component is 12 meters per second, this is technically the hypotenuse (actual initial velocity) multiplied to cosine of 40 degrees. Therefore, to find the hypotenuse, we must divide 12 by cosine 40degrees. cos(40)= 0.766, and 12/0.766 = approximately 15.664, therefore our answer is (3) 15.7 m/s