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If a particle is projected vertically upward in a constant gravitational field with an initial speed v0. If there is a retarding force proportional to the square of the instantaneous speed, the speed of the particle when it returns to the intial position is v0vt/√(v02+vt2) where vt is the terminal speed.
A copper wire whose diameter is 0.16 cm carries a steady current of 10 A. What is the current density of the wire?Also calculate the drift velocity of the electrons in copper.
Calculate the heat-removal factor and the duct flow factor for a collector having an overall heat loss coefficient of 6 W/ (m 2 .K) constructed of aluminum fins and tubes. Tube to
what is mirage
(i) A disk shaped flywheel of uniform density _, outer radius R and thickness w. rotates with angular velocity _, obtain an expression for the moment of inertia 2 vol I =_ρ r dV
Because of concentration difference holes or electron try to vary from their side to other side. Only these holes or electrons cross the junction, having high kinetic energy. This
A monochromatic parallel beam of light is incident on a single slit. Graphically show the intensity distribution among the secondary maxima and principle maxima in diffracted beam.
Vector Direction The significance of 'direction' could be seen in the dissimilarity among velocity and speed. In physics, speed is a pure scalar or something along with a magni
What is the Static Electricity Have you ever had your hair stand on end after rubbing a balloon on your hair before a birthday party? You have probably experienced static e
Can you give the graphical comparison among the following three kinds of harmonic motion: i. Under damped harmonic motion ii. Over damped harmonic motion iii. Critically
Why does the charge on the outer surface of a parallel plate capacitor doesn't change when it is connected by a battery. only inner surface charge gets affected. Why??
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