Physics question and answers for September 04, 2023
- Q A negative charge, -q, has a mass, m, and an initial velocity,v, but is infinitely far away from a fixed large positive charge of+Q and radius R such that if...
- Q Assuming ideal frictionless conditions for the apparatus shownin the figure, what is the acceleration of the system if (a) m1=.25kg, m2=.50kg, and m3=.25kg, and (b) m1=.35kg, m2=.15kg and m3=.50kg? Please...
- Q An astronaut shipwrecked on a distant planet is on top of asheer vertical cliff (let’s call it point P), which he wishessomehow to climb down. He does not know the...
- Q Determine the equations for planetary motion using Hamilton’sequations.
- Q When you look through a fish tank at someone on the other side,you only see a reflection of the fish in the tank. However, theother person can see you clearly....
- Q A charge of -3.00 nC is placed at the origin of an x-ycoordinate system, and a charge of 2.00 nC is placed on the y-axisat y = 4.00 cmb.If a...
- Q Anyone answer the 3 questions?Experiment:Tie one end of the fishing line to a chair.String the other end of the fishing line through the straw andtie the line to a 2nd...
- Q Aspeedboat traveling at a constant velocity of 20m/s passes a policeboat at rest. The police boat starts up 8 seconds after thespeedboat passes, and accelerates at 2.3m/s^2. When and where...
- Q Explain how Biot-Savart’s law enables one to expressthe Ampere’s circuital law in the integral form?
- Q Thehydrogen atom electron is in the ground state. The electron absorbsenergy and makes a transition to the n=3 state. Then it returns tothe ground state by emitting two photons when...
- Q two moles of a monatomic ideal gas are compressed in a cylinderat a constant temperature of 85 c until the original pressure hastripled?a)what is the work done on the gas?b)How...
- Q A ladder of length L = 2.8 mand mass m = 16 kg rests on a floor with coefficient of staticfriction ?s = 0.51. Assume the wall isfrictionless.1)What is the...
- Q When two lenses are used in combination, the first one forms animage that then serves as the object for the second lens. Themagnification of the combination is the ratio of...
- Q A single-coil loop of radius r = 7.40 mm, shown below, is formedin the middle of an infinitely long, thin, insulated straight wirecarrying the current i = 32.5 mA.  What is...
- Q 24. A 0.0500-kg ice cube at −30.0ºC is placed in 0.400 kgof 35.0ºC water in a very well-insulated container. What isthe final temperature?
- Q Compare the measured values of tension to the calculated valuesof tension. What are the possible physical experiment uncertaintiesfor the differences between the measured and calculated?Measured= .075NCaculated= .079NVelocity v = .433m/sMass...
- Q A cylinder contains 0.250 mol of carbon dioxide (CO2)gas at atemperature of 27.0?C. The cylinder is provided with a frictionlesspiston, which maintains a constant pressure of 1.00 atm on the...
- Q An Electron initially in the n=2 state of a hydrogen atom isexcited by a photon to the n=5 state.a. What is the energy of the excitatoin photon?b. As the atom...
- Q A block of mass 5 kg is sitting on africtionless surface. The block initially has a velocity of3 m/s. A force of 9 N is appliedfor 2 s.  What is the...
- Q Your grandfather clock’s pendulum has a length of 0.9930 m. ifthe clock runs slow and loses 21 s per day, how should you adjustthe length of the pendulum?
- Q Pool players often pride themselves on their ability to impart alarge speed to a pool ball. In the sport of billiards, eventorganizers often remove one of the rails on a...
- Q Two loudspeakers emit sound waves along the x-axis. Alistener in front of both speakers hears a maximum sound intensitywhen speaker 2 is at the origin and speaker 1 is at...
- Q How does spectroscopy work?
- Q A wire made from tungsten is 4.5 m long and 0.45 mm in diameter.What is its resistance at 1500°C?
- Q Which variables are in Coulomb’s law?Which constants are in Coulomb’s Law?What does it mean that a quantity is avariable?What does it mean that a quantity is a constant andhow is...
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