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A car is hauling a 85.8-kg trailer, to which it is connected by a spring. The spring constant is 2360 N/m. The car and the trailer are moving with a constant acceleration of 0.487 m/s2. By how much is the spring stretching?
one mol of aluminum at a uniform temp of 0c is placed in thermal contact with a 2nd mol of aluminum which initially is
A small hollow tube is glued to a speaker in a vertical manner. The speaker is set to play a single tone such that it vibrates vertically with simple harmonic motion. Find an expression for the frequency at which rattling begins
In addition to dark matter cosmologists have proposed dark energy. The reason for this was the discovery of: A) slowing down of the expansion of the universe B) cosmic background radiation C) acceleration of the expansion of the universe D) gravitati..
A gamma-ray photon produces an electron and a positron, each with a kinetic energy of 259keV, Determine the energy of the photon
You are standing on a brigde that is 50.0 m above a dried up riverbed. what is the minimum spring constant that the bungee cord must have for you not to hit the riverbed
A 4800 kg truck is parked on a 14° slope. How big is the friction force on the truck
Consider 10 air molecules in an otherwise empty room. Find the probability that exactly four molecules are in the front third and exactly six in the top half, exactly three molecules are both in the front third and the top half (that is, the same mol..
Calculate the magnitude of the gravitational force exerted ona 441-kg satellite that is a distance of 2.17 times earth radii from the center of the earth. What is the magnitude of the gravitational force exerted on the earth by the satellite? Deter..
A thin sheet of transparent material is surrounded by air. The sheet has an index of refraction of 1.47, Calculate the wavelength of the light in the material
An electron is moving through a region of space which possessesa uniform electric field and uniform magnetic field. The electricpoint in the positive x direction and has a magnitude of E = 2,500v/m. The magnetic field is pointing in the positive y..
An 8.0cm diameter, well-insulated vertical cylinder containing nitrogen gas is sealed at the top by a 5.8kg frictionless piston, What is the gas pressure inside the cylinder
An oil production well produces from a formation that is 10 ft thick and has a permeability to oil of 50 millidarcies. The well produces only oil. Estimate the steady state production rate in bbl/day, assuming that the pressure (P) at the effective d..
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