DocumentsEkagarh hasn't uploaded any document yet
VideosEkagarh hasn't uploaded any video yet
Blog postsEkagarh hasn't written any article yet
Ideal gas particles are assumed to be volumeless and to neither attract nor repel each other. Why are these assumptions crucial to the validity of Dalton’s law of partial pressures?
What is the impact of volumeless of ideal gas on Dalton's law?04/06/2014
"The number of protons in an atom determines the identity of the atom. What does the number and arrangement of the electrons in an atom determine? What does the number of neutrons in an atom determine?"
How atom react with other atom.23/05/2014
"A cube with 2.0-cm sides is made of material with a bulk modulus of 4.7×10power5 N/m2 . When it is subjected to a pressure of 2.0×10pwer5 Pa the length of its any of its sides is:"
" A. 0.85cm B. 1.15cm C. 1.66cm D. 2.0cm E. none of these"26/02/2013
" A. the shear B. the fractional change in volume C. the fractional change in length D. Young’s modulus E. the spring constant"26/02/2013
"Two supports, made of the same material and initially of equal length, are 2.0m apart. A stiff board with a length of 4.0m and a mass of 10kg is placed on the supports, with one support at the left end and the other at the midpoint. A block is placed on the board a distance of 0.50m from the left end. As a result the board is horizontal. The mass of the block is:"
" A. zero B. 2.3kg C. 6.6kg D. 10kg E. 20kg"26/02/2013
"A 4.0-m long steel beam with a cross-sectional area of 1.0×10 −2m2 and a Young’s modulus of 2.0×10 power11 N/m2 is wedged horizontally between two vertical walls. In order to wedge the beam, it is compressed by 0.020mm. If the coefficient of static friction between the beam and the walls is 0.70 the maximum mass (including its own) it can bear without slipping is:"
" A. 0 B. 3.6kg C. 36kg D. 71kg E. 710kg"26/02/2013
"A force of 5000N is applied outwardly to each end of a 5.0-m long rod with a radius of 34.0cm and a Young’s modulus of 125×10power8 N/m2 . The elongation of the rod is:"
" A. 0.0020mm B. 0.0040mm C. 0.14mm D. 0.55mm E. 1.42mm"26/02/2013
"A certain wire stretches 0.90cm when outward forces with magnitudeFare applied to each end. The same forces are applied to a wire of the same material but with three times the diameter and three times the length. The second wire stretches:"
" A. 0.10cm B. 0.30cm C. 0.90cm D. 2.7cm E. 8.1cm"26/02/2013
" A. returns to its original shape when the stress is removed B. remains underwater C. breaks D. bends 180 E. does none of these"26/02/2013
" A. just below the ultimate strength B. just above the ultimate strength C. well below the yield strength D. well above the yield strength E. none of the above"26/02/2013