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A cylinder having 1.00 g of water at the boiling point is heated until all the water turns into steam.
The expanding steam pushes a piston 0.365 m.
There is a 215-N frictional force acting against the piston.
What is the change in the thermal energy of the water?
Determine the efficiency of a Carnot engine operating reversibly between 40°C to 20°C. Can you explain thermodynamic process? Give a brief account of any two such processes.
Q. If a single force acts on an object, the object accelerates. yse it is definately true. Newton's second law.
two free charges +q and +5q are a distance L apart. A third charge is placed so that the entire system is in equilibrium.find the location and magnitude and sign of the charge.
In Bohr's theory of the atom, what force was responsible for holding the electrons in their orbit? Ans: Coulomb force or the force of attraction among the proton (nucleus) a
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A stone drops from the edge of the roof. It passes the window 2 m high in 0.1s . How far is the roof above the top of the window? Solution) Height of the window (h) = 2m Acce
The molecular theory of magnetism was given by Weber and modified later by Ewing. According to that theory - Each molecule of a substance is a complete magnet in itself. Though,
Infrared Waves: Infrared wave also known as heat wave. These waves are radiation by hot body at dissimilar temperature.
When an electron makes transition from higher energy level having energy E2(n2) to a lower energy level having energy E1 (n1) then a photon of frequency v is emitted.
A 6kg crate originally at rest is pulled to the right along a horizontal plane with a constant horizontal force of 12N. a)find the velocity of the crate once it has moved 3m on th
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