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At what temperature would the average speed of helium atoms equal (a)the escape speed from Earth, 1.12 ´ 104 m/s, and (b) the escape speed from the Moon, 2.37´ 103 m/s? (See Chapter 13for a discussion of escape speed, and note that the mass of a helium atom is 6.64 ´ 10-27 kg.)
Resonance: When the frequency of driving force becomes equivalent to the natural frequency of an oscillating system, the driving force gives maximum energy and the oscillating
Q. Compute the resistance of the filament of a 100W, 220 V electric bulbs. Power P = V 2 /R Resistance R = V 2 /P = (220 X 220)/ 100 = 484 ohm.
initial acceleration rocket is 0.01t in upward dirction initioal velocity is 50ms-1 , what is the function for the velocity of the rocket?
Q. What instrument is utilized to measure volume? Answer:- Liquid volume is measured with graduated cylinders, beakers, measuring cups, spoons and the like. For regular ob
what is the physical significance of damping coefficient?
A single-phase, 50Hz transformer has 40 primary turns and 520 secondary turns. The cross-sectional area of the core is 270cm 2 . When the primary winding is connected to a 3
Explain the term 'resistivity' and write its S. I . unit. Derive the expression for the resistivity of a conductor in terms of number density of free electrons and relaxation time.
C- Radiowave Heating( Diathermy) Short wave diathermy utilized electromagnetic wave in radio range ( ~10m ) and microwave range (~ 12cm) .Short wave diathermy penetrate deep into
What is the force required to accelerate a mass of one kilogram one meter per second per second? Basically, you have defined the Newton. Force is the vector product of mass
Name the female physicist who received the Nobel Prize in 1963 for her discovery concerning the shell structure of the nucleus. Ans: (Maria Goeppert) Mayer was the first fe
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