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What is the molarity of the dye in a solution with an absorbance of 0.118 at 560nm when a student measures k for a certain blue dye to be 24.16M-1 at 560nm?
A long solenoid which consists of 990 turns uniformly distributed over the length of 0.420 m generates a magnetic field of magnitude 1.00 x 10-4 T at its center. Determine what current is needed in t
The resolution of the eye is eventually limited through the pupil diameter. Determine the smallest diameter spot the eye can generate on the retina when the pupil diameter is 2.58 mm?
Graphite and diamond are two allotropic modifications of carbon. Graphite conducts electricity while diamond does not. Why is that? Does it have to do with diamonds having a crystal lattice, and gr
A beam of un-polarized light of intensity having 39.0 W/m2 passes via a polarizing sheet. Determine the electric field amplitude of the transmitted beam?
Would the reported mole ratio of oxygen to magnesium be too high, too low, or unaffected by this procedure? Explain. Suppose that the magnesium is not polished.
If pilot had not corrected course, how far would he be from Jamestown? Illustrate x/y plane diagram and comprise all work and steps.
(i) Determine the radiation pressure which a 250 W light bulb emitting light having an efficiency of 15% applies on a small matte-black surface at a distance of 0.250 m? (ii) Determine the pressure
A sample which is having 50.0 ml of a 1.00 M solution of CuSO4 is mixed with the 50.0 ml of 2.00 M KOH in a calorimeter. The temperature of both solutions was 26.3C after mixing and 20.2 C before mi
Determine the average net energy density in electromagnetic radiation which consists of an intensity of 515 W/m2?
Explain that for an isolated rigid body that possesses an axis of symmetry, and rotates around one of its principle axes, the motion is just stable to small perturbations when the principle axis is
In a mass spectrometer, a singly ionized ion of 24Mg consists of a mass equivalent to 3.983 x 10-26 kg and is accelerated via a 3.00 kV potential difference. It then enters an area where it is defle
There is a uniform magnetic field extending over the whole table having a magnitude of 4.35 T and directed to the north and downward, forming an angle of 25.8° with the horizontal. Determine the
The mirror is hung from middle of the wire so that each half of wire pulls with the force of 100N. Two halves of wire make the angle of 160 degrees with each other. Determine the weight of the mirro
A block of mass of 4.0 kg rests on the horizontal surface. Determine what horizontal force is needed to accelerate to 5.0 m/s^2 when (i) there is no friction and (ii) when the coefficient of kinetic
Describe the ionic strength and the activity coefficient of a solution that is 0.04M FeSO4, (Hint might require to use the Debye-Huckel equation)
A uniform beam of 1220 N is joined to a vertical wall at one end and is supported through a cable at the other end. A W = 1850 N crate suspends from the far end of the beam. (i) Compute the magnitud
Determine the minimum value for the coefficient of static friction µ s in such a way that the cylinder rolls without slipping down the incline plane? Represent your answer in terms of M, R, g,
Assume that a steel of euctoid composition is cooled to 675 degrees Celsius from the 760 degrees Celsius in less than the 0.5 s and held at this temperature.
An 83 kg running back moving at a 4.0 m/s forms a perfectly inelastic collision having a 110 kg linebacker who is primarily at rest. Determine the speed of the players just after their collision?
The airplane velocity of 640km/h at 250 degrees and the wind velocity of 80km/h from west. Find new speed and in what direction (degrees is it heading)? Illustrate diagram on x/y plane.
Describe the molarity of a solution prepared by mixing the 300 mL of a 0.250 M solution of a sulphuric acid with the 700 mL of a 6.00 M solution of sulphuric acid?
The cord's un-stretched length is around 30.0 m. Supposing that the bungee cord follows Hooke's law when it stretches; determine its spring constant.
Discuss how much energy can be released from converting one neutron from the mass to energy? Where the mass of one neutron is 1.01 amu, and the 1.00 g = 6.02 x 10e23 amu.
Assume that 25.00 mL of 0.100 molar N are titrated with 0.100 molar X and that the pH of the solution is maintained at the1.00 throughout the course of the titration.