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A block having weight W = 14.5 N that can slide devoid of friction on a 45o incline, is joined to the top of the incline by a mass less spring of un-stretched length x0 = 0.48 m and spring constant
A mole of perfect gas expands from the 5 to 1 bar at 298 K. Determine the values of q and w if (a) the expansion is carried out reversibly, and (b) against a constant external pressure of 1 bar? Ex
A block of wood floats in the fresh water having two-thirds of its volume V submerged and in oil having 0.90V submerged. Determine the density of (i) the wood and (ii) the oil.
The two electrons A and B encompass speeds on 0.90c and 0.80c correspondingly. Determine their relative speeds when they are: i) Moving in the similar direction
A mixture contains the three cations Cu2+, Ag+, and Al3+ Propose a procedure for the separation of these cations. Specify what cation(s) are separated at each step of your procedure and
This engine is positioned in a rocket body of mass 70 g. Determine the magnitude of the final velocity of the rocket when it were to be fired from rest in outer space through an astronaut on a space
Create the truth table to illustrate that expression (p --> Q) V (~q ^p) is a tautologies. Create the truth table to illustrate that expression (r--> Q) --> p and (r V p) ^ (q --> p) and a
Write down the structures of two chair conformations of 1-tert-butyl-1-methylcycloheane. Explain which conformation is more stable? Why?
Determine the half life of the reaction if a0 = 4 M. Determine and comment on the length of time required for the concentration of Cl2 to decrease from an initial concentration of 4 M to 1.8
Relative to the stationary reference frame fixed to the laboratory, the particle travels a distance of around 1.36 x 10-3 m before disintegrating. Find out the distance computed by a hypothetical pers
Explain what type of intermolecular force accounts for the following differences in each case?CH3SH boils at 6 degrees Celsius, CH3OH boils at 65 degrees Celsius.
A hockey puck of 110 g sent sliding over ice is stopped in around 15 m by the frictional force on it from the ice. (i) When its initial speed was 4.0 m/s, determine the magnitude of the frictional for
The student's body temperature eventually dropped from40oC to 37oC. A feverish chemistry student weighing 75 kg was immersed in the 400 kg of water at 4.0oC in an attempt to reduce the fever.
This is only dividend to be paid in coming year. A 1-year 200-strike call option on stock has the price of 4. Determine 180-strike put option price?
Calculate the order of magnitude to which the pressure must be reduced so that the electron beam attenuation by electron - H2 collisions is 1/e over the 0.5m length for a cathode ray tube to deliver
What would you expect to see the after the second development if a TLC plate showed two spots at 0.25 and 0.26 Rf. The plate was removed, the residual solvent evaporated and then the plate was retu
Determine the heats of combustion for the following reaction from the standard enthalpies of formation. Express answer in kilojoules.
Determine the electrical field due to a line charge. Find out the expression of the field for infinitely exceed the line charge? Determine the expression for torque on a current loop. Find out the m
A concave shaving mirror consists of a radius of curvature of 34.0 cm. It is placed so that the (upright) image of a man's face is twice the size of the face. Determine how far is the mirror from th
Borax exists in 3 forms: a pentahydrate, hydrous & decahydrate. Borax is a widely used chemical with such diverse uses as detergents & ant poison. If you were trying to optimize the maximum
A flexible stick 2 m long is not fix in any way and free to vibrate. Sketch a clear drawing of the stick vibrating its first three harmonics, and then employ your drawing to determine the wavelength
A proton moving with the speed of 2.1 cross 107 m/s enters an area of space where there is a uniform magnetic field having magnitude 0.25 T. When the proton moves perpendicularly to B, determi
It is evalauted that annual sales of the new product will be 2,000 first year and increase by 1,000 per year until 5,000 are sold during 4th year.
The ball rebounds in the opposite direction having a speed of 7 m/s. Determine the angular speed of the bar just after the collision.
Determine the weight of the KCl residue when the 3.00 grams of KClO3(s) is decomposed according to the reaction 2KClO3->2KCl(s)+ 3O2(g)?