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Question 1: Explain the difference between a fluorescence emission spectrum and a fluorescence excitation spectrum.
Question 2: Which more closely resembles an absorption spectrum? Why do some absorbing compounds fluoresce but others do not?
Question 3: The IR spectrum of CO shows a vibration absorption band centered at 2170 cm-1.
What is the force constant for the CO bond?
A 2-kg box is initially sliding at a speed of 15 m/s on a horizontal surface. What is the coefficient of kinetic friction between the box and the horizontal surface
A student (m = 63 kilogram) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.0170 second. Evaluate from what height did the student fall
A certain atom has 92 protons. Assume that the nucleus is a sphere with radius 7.10 fm and with the charge of the protons uniformly spread through the sphere. At the nucleus surface find the magnitude
coming back to your room one night, you see your roommate balancing an apple on top of their head. what is the corresponding Newtons third law interaction pair force
A silver wire has a cross sectional area A = 2.0 mm2. A total of 9.4 × 1018 electrons pass through the wire in 3.0 s. What is the drift velocity of these electrons
What are the magnitude and direction of the force exerted on a 4.04 µC charge with a 277 N/C electric field that points due east?
a man with mass m 70.0 kg weight 154.0 lbs is walking towards a patio at 2.10 ms 4.70 mph when at the last moment he
A conical pendulum is formed by attaching a 67.0 gram mass to a 1.1 meter string. The mass swings around a horizontal circle of radius 29.0 centimeter. Find what is the acceleration of the mass
a boeing 747 jumbo jet has a length of 61.3 m. the runway on which the plane lands intersects another runway. the width
a 115 granite cube slides down a 40 frictionless ramp. at the bottom just as it exits onto a horizontal table it
While working in a research lab, you find that it takes396 J of heat to increase the temperatureof 0.99 kg of a material by 32 K. What is the specific heat of the material
A force of 15 N acting at an angle of 25 degrees to the horizontal is used to pull a box a distance of 5 m across a floor. How much work is done
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