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A radioactive atom is moving with respect to the laboratory at a speed of 0.3 c in the x direction. If it emits an electron having a speed of 0.8 c in the rest frame of the atom, Evaluate the velocity of electron with respect to a laboratory observer when :
(I) it is ejected in the y direction
(ii) the electron is ejected in the x direction
All the given four Laws may be written in one relation, PV = nRT =m/n RT This formula is known as deal gas equation. Where m = mass of the gas M = molecular mass of t
A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring? Ans: A certain spr
A circuit contains of a 10 volt battery connected in series with a 4 ohm resistor and a 6 ohm resistor. Why is it complete nonsense to say that 4 volts goes through the 4 ohm resis
Determine the external reactions on the x- and y-directions needed to hold the fixed vane, which turns the free oil jet in a horizontal plane. V1 = 18 m/s, V2 = 17 m/s, and Q = 0.1
A rectangular surface (0.14 m x 0.39 m) is oriented in a uniform electric field of 440 N/C. What is the maximum possible electric flux through the surface?
How is Specific Gravity defined? Specific Gravity, SG, is a unit less quantity that provides the scientist or engineers an idea of how dense a substance is compared to water. T
A coil of 300 turns is wound uniformly on a ring of non-magnetic material. The ring has a mean circumference of 40cm and a uniform cross-sectional area of 4cm 2 . If the current in
A parallel plate capacitor is made from 25 plates, each 70mmby 120mm interleaved with mica of relative permittivity 5. If the capacitance of the capacitor is 3000pF verify the
A ball is 6.5 m from a convex mirror with a magnification of 0.75. If the image is 0.25 m in diameter. What is the diameter of the actual ball?
A Newton is equal to which of the following? a) kilogram-meter per second b) meter per second squared c) Kilogram-meter per second squared d) Kilogram per
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