Physics, 29.06.2019 13:30 thedragontale1020
Consider a system of n interacting molecules, whose vibrational degrees of freedom are treated with qm, and whose translational and rotational degrees of freedom are treated classically with the hamiltonian: hclass = ktrans + krot + u where k is kinetic energy, and u is a potential energy. derive the expression: prob(ktrans) = e −ktrans kt dptrans ∫ e −ktrans kt dptrans by starting from: q = qqm n! h sn ∫ e hclass kt dpclass dqclass given that: ktrans = ∑ 1 2m n j=1 (px, j 2 + py, j 2 + pz, j 2 ) derive the normalized maxwell-boltzmann distribution: f(px , py, pz)dpxdpydpz = (2πmkt) −3/2 e −(px 2+py 2+pz 2) 2mkt dpxdpydpz
Answers: 2
Physics, 22.06.2019 00:10
The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?
Answers: 3
Physics, 22.06.2019 08:30
An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?
Answers: 1
Physics, 22.06.2019 11:00
Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
Answers: 3
Physics, 22.06.2019 15:00
Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.
Answers: 1
Consider a system of n interacting molecules, whose vibrational degrees of freedom are treated with...
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