Explanation:
Pressure of a liquid :
Liquids also exert pressure as that in case of solids. We can understand it as the fact that it is impossible to hammer a nail with liquid. That's why liquid exert pressure on its surface. The formula for the pressure in liquid is given by :
Where
= density of liquid
g = acceleration due to gravity
h = height
The SI init of pressure is Pascal and it is dented by Pa.
Answer:
G is a universal constant of gravitation whose unit is Newton per meter square per kilogram square (Nm^2kg^-2)
The answer is d the ray of light gets refracted.
Answer:
a) 30.84m/s
b) 348.32Hz
c) 32.34m/s
d) 289.69Hz
Explanation:
a) If 1 mile=1609,34m, and 1 hour=3600 seconds, then 69mph=69*1609.34m/3600s=30.84m/s
b) Based on Doppler effect:
/*I will take as positive direction the vector */
c)
d)
The all minerals are pure and free from gangue particles......