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Q. What percentage of a given radioactive substance will be left after 5 half -life periods?
The residual part of radioactive substance = ( ½ ) 5
Therefore the percentage of remaining part of radioactive substance
= ( ½ ) 5 X 100% = 3.125 %
Calculate the luminosity for a beam of protons of 1uA colliding with a stationary liquid hydrogen target 30cm long. Compare this to a typical colliding beam luminosity of 10e34 cm-
An engineer is using DSC to determine the fiber volume fraction of a carbon fiber / epoxy prepreg. It is known that the heat of reaction of the pure, fresh epoxy resin (no carbon
working and principle
calculate the distance a car travelled if its displacement was 50km and the distance it moved north was 40km.assuming it moved westward?
definition, Working principal, applications ??
A uniform spring of length 2m and mass 200gm is under a tension of 800N. Find the speed of transverse wave in the string.
Is photon a particle or a wave? What is its rest mass? Can X-ray generate photoelectric effect? Determine the work function of a metal production photo electrons with X-rays of
A single fixed pulley Set up a one fixed pulley as shown in the diagram below. By means of weights see how much force is needed to lift weights of 25, 50, 75, 100 and 200 g. Ca
What are capacitors used for in induction coils
Electric charge is a physical property of matter that causes it to experience a force when near other electrically charged matter. There exist two types of electric charges, called
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