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An ideal gas is compressed isobarically from 8.72 m3 to 5.41 m3 at a pressure of 2.52 x 105 Pa due to the addition of 2.35 x 105 J of heat. What is the change in the internal energy of the gas? Express your result in scientific notation and to three significant digits.
Show that there frequency of the simple harmonic oscillations of the mass is about 5Hz - frequency of the simple harmonic oscillations of the mass
A 200-N beam is held horizontally by a vertical steel cable at each end. The beam is 18 m long. A 650-N box sits 3.0 m from the left end. What is the tension in the right cable
Assume that the reactor operates 80% of the time, that all the energy generates arises from the fission of 92U235 and that this nucleii is consumed only by the fission process.
1. Chameleons use their tongues to catch their prey. Their tongues typically accelerate at 250 m/s2 for up to 20 ms, then they travel at constant speed for a further 30 ms. During this total duration, of acceleration plus constant motion, of 5..
A total charge of 14 mC passes through a cross-sectional area of a nichrome wire in 2.8 s. If the number of charges that pass through the cross-sectional area during the given time interval doubles, what is the resulting current
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
a boat is traveling with a velocity of 5 kmhr upstream. the river is flowing at a velocity of 2kmhr downstream. what is
What fractional increase in tension of one wire will lead to the occurrence of 2 beats/s when both wires oscillate simultaneously.
a 0.300 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. the second ball moves
A sample contains radioactive atoms of two types, A and B. Initially there are three times as many A atoms as there are B atoms. Two hours later, the numbers of the two atoms are equal. The half-life of A is 0.72 hours. What is the half-life of B?
Consider a horizontal square plate capacitor of area 1.8*1.8 m2, capacitance in vacuum 1 F, which contains a dielectric material with dielectric constant K=6. The dielectric slides frictionlessly and is attached via a massless string and a massles..
A woman who is late in her pregnancy often leans backwards slightly when getting out of chairs and even while walking. Why is the backpack helpful
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