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Ball A, with a mass of 0.20 kg, strikes ball B, with a mass of 0.30 kg.
The initial velocity of ball A is 0.95 m/s. Ball B is initially at rest.
What are the final speed and direction of ball A and B after the collision if they stick together?
what is the importance of si unit
2 moles of an ideal gas expand isothermally and reversibly from 50.0 dm 3 to 97.8 dm 3 at a temperature of 63.7 o C. (i) Calculate the entropy change for this process,
Chandrasekhar limit (S. Chandrasekhar; 1930) This is a limit that mandates that no white dwarf (a collapsed, degenerate star) may be more massive than approximates 1.4 masses
What is the difference between unit cell and primitive cell In primitive cell, number of atoms per unit cell is one while if number of atoms per unit cell is greater than one i
Q. Collector current I c =20 mA and base current I b = 50 A. Find current gain β of a transistor. β = I C / I B = 20 X 10 -3 / 50 X 10 -6 = 400
Q. A beam of electrons travelling with a speed of 4 X 10 7 ms -1 is projected normal to a magnetic field of B = 10 -3 Wb m -2 . What is the path of the beam in the magnetic fiel
Q. What do you mean by additive nature of charges? Give an example. Additive nature of charge The entire electric charge of a system is equal to the algebraic sum of electric
to draw v-t graph with variable retardation
If the current in a wire of a CD player is 14.0 mA, how long would it take for 1.90 C of charge to pass a point in this wire? Answer in units of s
faint, young sun paradox Theories of stellar evolution denote that as stars mature over the main sequence, they steadily grow hotter & brighter; calculations recommend that at
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