Physics question and answers for July 18, 2023
- Q Briefly explain how the shape of the BE distribution functionsolves the UV catastrophe.
- Q A helium balloon ride lifts up passengers in a basket. Assumethe density of air is 1.28 kg/m3 and the density ofhelium in the balloon is 0.18 kg/m3. The radius of...
- Q A long, straight wire carrying a current of 3.00 A moves with aconstant speed v to the right. A 5-turn circular coil ofdiameter 1.25 cm, and resistance of 3.25 µΩ,...
- Q Why is chromatic Aberration a problem for astronomers and notfor thin lens?
- Q E field of a uniform and planar distribution of chargeA uniform surface charge density of 5nC/m2 is present in theregion x=0, -2<y<2 and all z. if ε=ε0, find E at:a)...
- Q Explain what happens in the convection zone of the Sun and thevisible results of this process. Please do not hand write aresponse. It is difficult to read.
- Q â¦Â  Use the equation of motion to show that oncereleased from submersion the magnitude of the acceleration a, forthe object that ascends (floating to the surface), in terms of thedensity...
- Q Cuando se coloca un material dieléctrico entre las placas de uncapacitor, su campo eléctrico resulta disminuido en el valor de laconstante dieléctrica del material. La razón fÃsica de esto es:a)...
- Q Choose the correct statements from the following list. (Give ALLcorrect answers, i.e., B, AC, BCD...)A) A major difference between dark matter and dark energy is thatone causes the univserse's expansion...
- Q Physics Homework:1) A 1400 kg car goes around the corner at a constant speed of15.0 m/s. If the centripetal acceleration is 5.00 meters per secondper second, what is the radius...
- Q Friction between the skaters and the ice is negligible.Ann has a mass of M, a moment of inertia of3Ioand has a velocity of va = -2voi+ 7voj. She is spinning...
- Q Consider an RC circuit with E = 12.0 V,R = 165 Ω , and C = 55.6 μF .A) Find the time constant for the circuit.B) Find the maximum charge...
- Q Explain the astrometric method that astronomers use to searchfor other planetary systems that orbit a star.NOTE: Please do not hand-write the answer as it is oftendifficult to read.
- Q There are n holes on the drywall and these n holes are on onehorizontal line. You are using patches (each patch is with length1) to cover these holes. What is...
- Q vector a has a magnitude of 16m and a direction of 65 above thenegative x axis. vecot b has a madnitude of 9.0m and is directedalong the negative x axis....
- Q Which orbital properties of extrasolar planets can be measuredand what methods are used to make those measurements? Please do nothand write or post pictures as it is difficult to read..thanks!
- Q To complete this exercise you need a software package thatallows you to generate data from the uniform and normaldistributions.(i) Start by generating 500 observations xi - the explanatoryvariable - from...
- Q Ina perfectly inelastic collision, while doing bullet/ pendulumexperiment through simulation, there were some sources of error(experimental factors)that may affect, the value of final velocityand final kinetic energy. what are those...
- Q A star is moving towards a moon. It has mass m = 0.22×109 kg andspeed v1 = 2.6×107 m/s at distance R1 = 2.9×107 m from the centerof the moon....
- Q A 28 kg block on a horizontal surface is attached to ahorizontal spring of spring constant k = 2.9 kN/m. The block ispulled to the right so that the spring...
- Q a. It has been said the energy from the sun is based onfusion. Explain, using reaction equations.  Are the otherstars the same then?b. Fission reactors have to be designed with cautiontoward...
- Q A monkey in a tree throws a banana at a person on the ground. Theinitial height of the banana relative to the ground is 4.0 m, andthe monkey throws it...
- Q A 1.00 cm-high object is placed 3.40 cm to the left of aconverging lens of focal length 8.95 cm. A diverging lens of focallength −16.00 cm is 6.00 cm to...
- Q A model rocket is fired vertically upward from rest. Itsacceleration for the first three seconds is a(t)=96t, at which timethe fuel is exhausted and it becomes a freely \"falling\" body....
- Q Consider a spherical shell with radius R and surface chargedensity σ. By integrating the electric field, find the potentialoutside and inside the shell. You should find that the potential isconstant...
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