Answer:
v = 31.84 cm/s or 0.318 m/s
the speed of the water leaving the end of the hose is 31.84 cm/s or 0.318 m/s
Explanation:
Given;
Diameter of hose d = 2.76 cm
Volume filled V = 20.0 L = 20,000 cm^3
Time t = 1.45 min = 105 seconds
The volumetric flow rate of water is;
F = V/t = 20,000cm^3 ÷ 105 seconds
F = 190.48 cm^3/s
The volumetric flow rate is equal the cross sectional area of pipe multiply by the speed of flow.
F = Av
v = F/A
Area A = πd^2/4
Speed v = F/(πd^2/4)
v = 4F/πd^2 ......1
Substituting the given values;
v = (4×190.48)/(π×2.76^2)
v = 31.83767439628 cm/s
v = 31.84 cm/s or 0.318 m/s
the speed of the water leaving the end of the hose is 31.84 cm/s or 0.318 m/s
Answer:
Proton proton chain reaction involves the fusion of two hydrogen atoms.
Explanation:
Two protons combine together to form a deuterium nucleus, a neutrino and a positron.
This deuterium will then combine with another hydrogen to form a helium isotope with mass number three and gamma rays.
Now two helium isotopes combine to form a helium 4 nucleus and two protons.
These two protons will once again initiate another proton proton cycle.
These are called thermonuclear fusion reactions. They are responsible for the heat and light that are received from sun .
Proton proton cycle happens in all stars primarily.
Need Height and Mass, since Gravitational Potential Energy is equal to mgh. Not really sure what you’re asking though. Please elaborate and I can give a better answer!
Answer:
about 200k years
Explanation:
because we were migrating as cavemans.
A///// shall be the answer
Less garbage will be produced, which leads to less pollution of the environment
Hope this helps ! - HAVE A GREAT DAYYY
