Answer:
6.86 m/s
Explanation:
velocity of the gasoline through the hole would be
As the height would decrease, the velocity of the flow would decrease.
If the lid of the tank would be closed, the pressure would reduce. so, again the velocity of the flow would reduce.
Answer:
Cu 8.92
Explanation:
The formula for density is mass/volume. If you were to divide 62.44 by 7, you would get 8.92. Since copper is the only metal in this table that has a density of 8.92, that is the answer.
If a ray of light hits the surface of a sheet of glass, some light will be reflected by the surface of the glass. However, much of the light will pass through the glass, because glass is transparent. ... This 'bending of a ray of light' when it passes from one substance into another substance is called refraction.
