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A laser emits light at wavelength ? = 637 nm in a beam of diameter 2.9 mm and at an energy-emission rate of 5.4 mW. A detector in the beam's path absorbs the beam. At what rate per unit area does the detector absorb photons?
Write an equation for the equilibrium reaction and a K expression. Solve for the pH of the solution.
A 25.8-mW laser beam of diameter 1.99 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
The solubility of zinc oxalate is 7.9 x 10-3 (exponential 3)M at 18 degrees celsius.Calculate its Ksp. Find the pure molar solubility of BaCrO4(Ksp=2.1x10(-10 Exponentially ) in a) pure water and b) 1.5 x10(-3 exponentially) M Na2CrO4.
Sinusoidal waves 5.00 cm in amplitude are to be transmitted along a string that has a linear mass density of 4.00 multiplied by 10-2 kg/m. find the highest frequency at which the source can operate
Estimate with your designing excel visual basic software that shows diagram of holes and angle of inclination
What is th molarity or concentration of a solution composed of 5.85g of potassium iodide, dissolved in enough water to make 0.125L of solution
Explain why you think Gustave Eiffel’s design was the one chosen from over 700 submissions to a design competitio. Describe what words or phrases the poets use to get the reader to “see” and “feel” the same experiences. Is this possible
0.1 M solutions of K2SO4, Ni(NO3)2, and LiC2H3O2 are prepared. Describe each salt as acidic, basic or neutral. Explain your choice.
The back wall of a home aquarium is a mirror that is a distance of 30.0 cm away from the front wall. The walls of the tank are negligibly thin. find the apparent distance between the fish and the front wall
A student measures k for a certain blue dye to be 24.16 M^-1 at 560 nm. What is the molarity of the dye in a solution with an absorbance of 0.118 at 560 nm
How much time does the object take to reach the ground.
An X-ray photon with a wavelength of 0.260nmscatters from a free electron at rest. Find the final momentum of the photon
Rank the magnitudes of the forces exerted on the following particles from largest to smallest. In your ranking, display any cases of equality. (Use only ">" or "=" symbols. Do not contain any parentheses around the letters or symbols.)
A 60 kg person jumps from rest off a 5m high tower straight down into the water. find the average force that the water exerts on the diver
A 20kg box is on a level surface pressed against a spring compressed 25cm and with k=1000 k/m. How far does the box go up the hill
when a photoelectric surface is illuminated with f 437 nm , the stopping potential 1.67 v, what is the maimum speed of the ejected electrons
In two different cases, two blocks are sliding to the right across a horizontal surface. In Case A the mass of each block is 3.9 kg. determine the magnitude of the acceleration of the blocks
A proton, initially traveling in the +x-direction with a speed of 5.00×105m/s, enters a uniform electric field directed vertically upward, What is the strength of the electric field
Standing on the surface of planet zork (which has mass M_z and radius R_z) you throw a rock(mass m straight up). At what speed was it thrown
The loaded cab of an elevator has a mass of 3.6 x 10^3 kg and moves 193m up the shaft in 20s at constant speed. At what average rate does the force from the cable do work on the cab.
An object is placed to the left of a convex lens and on the optical axis. find the magnification of the image formed by the lense
q1. a plane is flying horizontally with speed 198 ms at a height 6640 m above the ground when a package is dropped from
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