A sample contains radioactive atoms of two types a and b
A sample contains radioactive atoms of two types, A and B. Initially there are five times as many A atoms as there are B atoms. Two hours later, the numbers of the two atoms are equal. The half-life of A is 0.74hours . What is the half life in hours
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In a muonic atom, the electron is replaced by a negatively charged particle called the muon. What is the shortest wavelength of the Lyman series in a muonic hydrogen atom
The critical constants of ethane are Pc= 48.20 atm, Vc= 148 cm3mol-1, and Tc= 305.4 K. Calculate the van der Waals parameters of the gas and estimate the radius of the molecules.
A sample contains radioactive atoms of two types, A and B. Initially there are five times as many A atoms as there are B atoms. obtain the half life in hours
One end of a long glass rod (n = 1.3) is a convex surface of radius 4.9 cm. An object is located in air along the axis of the rod, at a distance of 10 cm from the convex end. (a) How far apart are the object and the image formed by the glass rod
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You hold a spherical salad bowl 80cm in front of your face with the bottom of the bowl facing you. What is the orientation is it erect or inverted
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
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