Physics question and answers for August 14, 2023
- Q 1. All the gas molecules (1028of them) are compressed so thatthey only fill 1/3rdof the room.They are then allowed to expand tofill the whole room. First, why do they expand...
- Q Explain the three types of tectonic plate boundaries, and thethree sub-types of the one boundary. In your explanation you mustinclude:The type of boundaryWhat is happening at this boundaryThe type of...
- Q A dielectric cylinder of permitivity ε rotates aroundits axis with angular velocity ω. If it is inside a uniformmagnetic field B parallel yo the cylinder's axis, find thepolarización charge in...
- Q Astronomy Question:1.Relate the peak of a thermal radiation spectrum totemperature.2.Predict and interpret the effects of Doppler shift.3.Use the inverse square law equation to relate brightness andluminosity.
- Q Consider the Stark effect with a constant externalelectric field for the states n=3 of the Hidrogen atom withoutconsidering spin. Using perturbation theory for degenerated statesin first order, find the eigenvalues...
- Q What is the powers criterion of Republic V, and how does itshow that knowledge and belief are distinct?
- Q In the Daytona 500 auto race, a Ford Thunderbird and a MercedesBenz are moving side by side down a straight-away at 74.5 m/s. Thedriver of the Thunderbird realizes he must...
- Q An electron moves with velocity of 6.0x106 m/sperpendicular to a magnetic field facing out of the page. Thecircular path of the electron has radius of 3 mm. (a) draw sketchof...
- Q . If a string fixed at both ends resonates in its fundamentalmode with a frequency of 150 Hz, at which of the followingfrequencies will it not resonate?
- Q 1. ​A negative pion ( ) is a particle that​ ​has a mass equal to2.49 x 10​-28​ kg. What is the rest π− energy of the pion in joulesand in...
- Q 2. (a). Prove that the sum of the two projectionoperators is not a projection operator, unless themultiplication of the two projection operators produces a zerovalue.(b). Prove that the result of...
- Q Describe a way to produce energy that causes no environmentharm
- Q Using complete sentences and the concepts discussed in Chapter15 and 16 (including the type of heat transfer, frequency,wavelength, and energy) describe the greenhouse effect, and how itdetermines the temperature of...
- Q Tell me about the formula and principle of obtainingthe focal length and size of the Zoom lens with one convex lens andtwo concave lenses.
- Q using newtons second law, derive the principle of angular impulseand momentum assuming mass is constant.
- Q When a 6 kg mass is attached to a spring whose constant is294 N/m, it comes to rest in the equilibrium position. Starting at t = 0, a force equal to  f (t)  = 12e−4t cos 3t...
- Q 1.You throw a 50kg ball upwards at 25m/s. The ball strikes thebeginning of the spring when it's 8 meters in the air, then itbegins to compress the spring. How far...
- Q Relative humidity isn't everything. Why is it that outdoor airof 80 Fo at 55% humidity will feel more “muggy†than a 50 Fo caveat 75% humidity? What other parameter is...
- Q Starting from rest, a truck travels in a straight line for 7.0 swith a uniform acceleration of +1.6 m/s2. The driver then appliesthe brakes for 3.0 s, causing a uniform...
- Q i want to ask about underwater applications of lifi.as we knowthat that that light caannot travel much in water it is used forshort range communications then what should be these...
- Q A 50-g cube of ice, initially at 0.0°C, is dropped into 200 g ofwater in an 80-g aluminum container, bothinitially at 30°C. What is the final equilibrium temperature?(Specific heat for...
- Q You have a glass ball with a radius of 2.00 mm and a density of2500 kg/m3. You hold the ball so it is fully submerged, just belowthe surface, in a...
- Q Touching hot objects is painful due to the high-velocityimpacts of many, many atoms. Touching extremely cold objects cansometimes be painful as well. If the atoms/molecules in a coldobject are moving...
- Q An ideal gas undergoes the following Carnot Cycle. It starts ina chamber of volume .0065 m3 and temperature 345 Kelvinand pressure 630 kPa (state 1). It is allowed to expandisothermally...
- Q Consider the retarded scalar and vector potentials. Show thatthey satisfy the Lorentz gauge.
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