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A 35-kg child is riding on a swing that rises to a maximum height of 0.80 m.
Neglecting friction, what is the child's gravitational potential energy at the top of the swing?
What is the child's kinetic energy at the top of the swing?
What are eddy currents? State how their effect is decreased in transformers. (b) Verify the ef?ciency of a 15 kVA transformer for the following conditions: (i) full load, un
A ball moving with speed v collides with a horizontal smooth surface at an angle ? with normal to surface in the figure. If coefficient of restitution is ‘e’ , then find VELOCITY a
CO has same electrons as or the ion that is isoelectronic with CO is: (1) N + 2 (b) CN - (3) O + 2 (4) O - 2
Uses of radio isotopes: Used in i)Medicine ii) Industry iii) Agriculture iv) Meteorology and v) Radio active dating.
Two similar simple pendulums each of length ‘l' and mass ‘m' are coupled by a spring of force constant ‘k'. Write down the expression for the normal mode frequencies of the coupled
Q. Define: grating element. The combined width of a slit as well as a ruling in a plane diffraction grating is called as a grating element.
Advantages of three phase system over single phase system a) Rotating magnetic field can be set up, by passing three-phase current by stationary coils. b) Polyphase s
: Construct a regular proof to derive the conclusion of the following argument: 1. (A & U) ~R 2. ~(~R v ~A) / ~U
Since polymeric materials can be formed in thin, highly uniform and non porous films with high dielectric strength, these materials are preferred dielectric materials for capacitor
Vince is determined to test law of gravity for himself walks a skyscraper 900ft. with zero initial velocity.Five seconds later, superman arrives at the scene and drive off the roof
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