Finding the density of the wood and the oil
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.
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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 are logically equivalent.
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 spacewalk? Suppose the fuel burns at a constant rate.
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 why. The only reagents that you have are 15M NH3
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 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? Explain what are the values of (c) delta U and (d) d
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 k = 375 N/m. Determine by how much will the sprin
The major product obtained from this reaction is reacted with sodium ethoxide in ethanol at 55°C. Methyl cyclohexane reacts with molecular bromine (Br2) in the presence of light and heat.
The two straight wire parts, each 3 m long and carrying a current of 4.5 A, are parallel to one other and separated through a distance of 0.40 m. Compute the magnitude of the force which each part applies on the other.
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Problem: Compare independent variables, dependent variables, and extraneous variables.
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