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Determine the number of grams of magnesium sulphate heptahydrate, MgSO47H2O are required to prepare 300 mL of a 0.750M solution?
The ice hockey puck slides all along the ice at 12 m/s. A hockey stick delivers an impulse of around 4.0 kg .m/s causing the puck to move off in the opposite direction with the similar speed.
At 298 K takes place in a cylinder maintained a pressure of two atmospheres. In the cylinder if 30 g of propane is mixed with the 100 g of oxygen, and the reaction proceeds to completion, calculate
Determine the average power of each pulse which passes via a 2.90 x 10-5 m2 surface which is perpendicular to the beam.
The mirror faces a cliff situated some distance away. Mounted on the cliff is a second mirror, directly opposite to the first mirror and facing toward it.
The frequency of such radio waves is the similar as the frequency at which the object oscillates. Determine the spring constant of the spring?
Determine distance of blimp form observer A if angle of elevation as viewed by A is 31degrees and angle of elevation as viewed by B is 58degrees. Determine the height of blimp also.
Calculate the thickness of the tin foil when the density is 7.28g/cm3 and a tin foil has a mass of 0.822g and measures the 10.5 cm by 4.50cm.
The human eye is very sensitive to light containing a frequency of around 5.70 x 1014 Hz, which is in the yellow-green area of the electromagnetic spectrum.
Determine an equation of circle centered at A that passes through B. Determine the equation of circle having the diameter with endpoints A and B.
By using Faraday's law of electromagnetic induction and the fact which the magnetic field changes from zero to the maximum value in one-quarter of a wave period, determine the magnitude of the avera
The chemical potential energy of a typical apple is around 76 Calories. When all this energy could be transformed to gravitational potential energy, determine how high would you be lifted?
The object of specific gravity 2 weighs 100 N less when it is weighed while fully submerged in water than when it is weighed in air. Determine the real weight of the object?
Determine the number of grams of Carbon dioxide will be formed by burning 4.05moles of propane? Suppose the oxygen is the excess reagent in this reaction.
Find out the intensity level of the combined signal received all along the X-axis, at a distance of 2.00 m from the origin, if the three sources act concurrently. (Suppose for the velocity of sound
Calculate the Wight percent Al in the original mixture when solid residue weighing the 8.4448 g from an aluminum refining process was dissolved in the acid, treated with 8-hydroxyquinoline, an igni
Determine minimum or maximum value of parabola f(x)=-x^2+8x-11 by first writing f(x) in form f(x)=a(x-h)^2+5. Ensure to say if your value is the maximum or minimum.
The 750 N painter finds that she can climb 2.75 m up the ladder measured all along its length, before it starts to slip. Find out the friction force and normal force which the floor applies on the l
A turn-table consists of a moment of inertia of 1.2 kg*m and rotates at 300 rpm. When a kg blob of clay of 0.300 lands on the turn-table 6 cm from the center, then determine the new angular velocity
Suppose you perform an acid-base titration, and the endpoint which is having 24.95 mL with an error of ±0.1 mL. Determine the relative uncertainty in the endpoint volume.
A simple pendulum consists of a mass of 0.650 kg and a length of 1.00 m. It is shifted through an angle of 14.0° and then free. Resolve this problem by employing the simple harmonic motion model
Determine the percent of ethyl alcohol in beer expressed as percent (wt/vol) when the ethyl alcohol content of many beers formed in the United States is 4.05%. If the density of the ethyl alcohol a
If wheels rotate at 125 revolutions per minute, determine the speed at which she is traveling in mi/hr. If the bike with 20 inch wheels was used, what should be the rpm if same speed was maintained?
Determine the number of atoms in a nickel coin. A nickel coin consists of a mass of around 5 g. Each mole (6.02 x 1023 atoms) consists of a mass of around 58 g.
Assume that, instead of the carbon-12, fluorine-19 had been chosen as the basis for the atomic masses. If it were assigned a mass of exactly 10.000, Discuss what would the atomic mass of copper be?