In the diagram, the liquid is vaporizing at which point? Question 5 options: A
B
C
D
E
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Answer : The correct option is, (D)
Explanation :
Vaporization process : It is type of process which occurs when phase changes from liquid phase to gaseous phase at constant temperature. And liquid converted to gas phase at temperature .
Melting process : It is type of process which occurs when phase changes from solid phase to liquid phase at constant temperature. And solid converted to liquid phase at temperature .
In the given diagram,
'A' shows the solid phase, 'B' shows the melting process, 'C' shows the liquid phase, 'D' shows the vaporization process and 'E' shows the gas phase.
Hence, the liquid is vaporizing at 'D' point.
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Distinguish between the positive and negative influences scientific knowledge can have on society
Classify the following as chemical or physical change: (a) adding sugar to lemonade, (b) plants using CO2 and H2O to form O2 and sugar, (c) boiling water, (d) frying an egg, (e) rust forming on metal, (f) fruit rotting, (g) removing salt from water by evaporation.
Why is a 5 rupees coin attracted by a magnet? name the metal present in the coin
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The kinetic energy of the object with a mass of 2kg has a linear momentum of 6kgm/s is 9 joules.
What is kinetic energy?
Kinetic energy is the energy obtained when the body is in motion. It is obtained from the product of mass and velocity. The SI unit of Kinetic energy is Joule(J).
K.E = 1/2 (mv²) where m is the mass of the object and its unit is the kilogram. v is the velocity of the object and its unit is m/s. The momentum of the object is obtained from the product of mass and velocity.
From the given,
Mass of the object (m) = 2 kg
Linear momentum of the object = 6 kg.m/s
Linear momentum (p) = m×v (m = mass of the object, v= velocity of the object)
v = p / m
= 6 / 2
= 3 m/s
The velocity of the object = 3 m/s
Kinetic energy = 1/2 (mv²)
K.E = 1/2 (2×3×3)
= 9 joules
Thus the kinetic energy of the object is 9 joules (J).
To learn more about Kinetic energy ;
#SPJ3
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If the force increased along with distance, then the magnet in your hand would reach out
and grab every magnet in Australia or on Mars and pull it toward you.
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only without the word 'cubic' in it.
If you like to play with different units of measure, here are a few conversions:
1 gallon = 231 cubic inches
1 cubic foot = 1,728 cubic inches = about 7.4805 gallons
1 cubic meter = 1,000 liters = 1 million cubic centimeters = about 264.17 gallons
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We know that,
kilometre = 1000 metre
1000 can be written as 10³ which is kilo.
Given,
88.0km = 88.0×1000
= 88.0×10³m
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cool things as close to Absolute Zero as we want to, but we can
never get all the way there.
I think that individual atoms and molecules have been cooled in
the laboratory to within a few thousandths of a Celsius degree
of it ... actually not too shabby an accomplishment !
____________________________________
WOW ! I just went and searched online for more information
on this subject. (You can't imagine what great stuff you can find
by doing that. You ought to try it some time.)
The 1997 Nobel Prize in Physics was awarded to a team of three
physicists who invented a method of using lasers to slow down the
motion of atoms, and that's the same thing as cooling them. They
were able to cool some atoms to a temperature of 240 millionths
of a degree above Absolute Zero !