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What is the root-mean-square speed of chlorine gas molecules at a temperature of 320 K? (R = 8.31 J/mol×K, NA = 6.02 ¥ 1023, and the molecular mass of Cl2 = 71)
A ladder is leaning against a vertical wall. The coefficient of friction between the ladder and the horizontal surface is u1=1.265, Determine the maximum angle with the vertical the ladder can make
A38.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of20.0m. What force does the seat exert on the child at the highest point of the ride
You are with 11 other people on a boat at rest in frictionless water. The group's total mass is 858kg, How far does the boat move
A simple pendulum of length of 0.350 m starts from rest at a maximum displacement of 10 degrees from the equilibrium position. When will the pendulum return to its starting position
A 50.0 kg skier is at the top of a slope. At the initial point at the top is 25.0 m vertically above point at the bottom. find the change in Potential energy of the skier-Earth system as the skier goes from top to bottom
You have a cube with electic potential that varies with V=kx3. What is the total charge enclosed in the cube
A monochromatic beam of light is absorbed by a collection of ground-state hydrogen atoms in such a way that three different wave-lengths are observed while the hydrogen relaxes back to the ground state. What is the wavelength of the incident beam.
three forces are applied to a bracket as shown. determine the range of values of alpha for which the magnitude of the resultant forces acting on a is less than 600n
A sinusoidal force with an amplitude of 1.70 N drives the system. At what frequency will the force make the object vibrate with an amplitude of 0.440 m
A proton (1e) and an alpha particle charge = 2e, mass = 6.64 x10^-27 kg are initially at rest, separated by 4.00 x 10^-15 m. Find the speeds of the proton and alpha particle
Keilah, in reference frame S, measures two events to be simultaneous. Event A occurs at the point (37.0 m, 0, 0) at the instant 9:00:00 Universal time on January 15, 2010. What time interval elapsed between the events
The low range of frequencies used for medical applications is about 1,000,000 Hz. What is the wavelength of this frequency in air
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