Physics question and answers for July 29, 2023
- Q Electric charge can accumulate on an airplane in flight. You mayhave observed needle-shaped metal extensions on the wing tips andtail of an airplane. Their purpose is to allow charge to...
- Q A pumpkin of mass 5kg shot out of a student-made cannon underair pressure at an elevation of 45 degrees fell at a distance 142mfrom the cannon. The students used light...
- Q Show that the charges placed on a system of fixedconductors are distributed on the conductors' surfaces in such away that the electrostatic energy of the resulting field is aminimum (Thomson...
- Q Use the kinematic equation, df = ½ at2,to calculate the acceleration of each object in Table 1. Record thecalculated acceleration in Table 1.2.    Show a sample calculation:Table 1: Average Free...
- Q Find the lowest two \"threefold degenerate excited states\" of thethree-dimensional infinite square well potential for a cubical\"box.\" Express your answers in terms of the three quantum numbers(n1, n2, n3). Express...
- Q A student sits on a rotating stool holding two 2.2-kg objects.When his arms are extended horizontally, the objects are 1.0 m fromthe axis of rotation and he rotates with an...
- Q The displacement vectors A and B shown in the figure below bothhave magnitudes of 2.50 m. The direction of vector A is θ = 35.5°.(a) Find A + B graphically....
- Q A parallel plate air capacitor with no dielectric between theplates is connected to a constant voltage source. How would thecapacitance and the charge change if a dielectric of dielectricconstant K=2...
- Q 2. Vertical jumping performance is often used as a crudemeasurement of muscle power. Considering the various deterministicfactors of jumping performance, which factor or sub-height is mostclosely related to vigorous muscular...
- Q A Freight truck is driving down I-95 at 70 mph.a. Assuming the truck is driving through calm air, what is thepressure that is exerted on its frontal area when cruising...
- Q 4. A physics student throws two bricks from the top of FawcettHall. Brick A is thrown straight up with an initial speed vo, andbrick B is thrown straight down with...
- Q A catapult launches a rocket at an angle of 49.6° above thehorizontal with an initial speed of 112 m/s. The rocket engineimmediately starts a burn, and for 3.58 s the...
- Q An explorer starts hiking from base camp 2 mi north, then hewalks for a while in a direction 30 degrees east of north, then hewalks 4 mi in a direction...
- Q Consider a particle with a charge-to-mass ratio of ?/? = 1moving in a uniform magnetic field of B = 1 Tesla applied inz-direction. At time t = 0 s, it...
- Q Imagine that you are in a car that is traveling up a bridge thatis inclined at an angle of 4.0 degrees from the horizontal. Thecar's speed is 35.0 mi/hr (15.65...
- Q Two containers of ideal gas with identical initial conditionsexperience identical temperature increases. Container A goesthrough the increase isobarically (with constant pressure) andcontainer B isochorically (with constant volume).More heat was added...
- Q A soccer player kicks the ball toward a goal that is 25.0 m infront of him. The ball leaves his foot at a speed of 17.0 m/s andan angle of...
- Q A boulder rolls over a 50m high cliff. How fast wasthe boulder moving if it was found 180 m on the ground? At whattime did the boulder hit the ground?...
- Q Conversion of -3.5 x 10e-6 to fentometers?
- Q During the Apollo missions, astronauts traveled from the Earthto the Moon and back. When they were close to Earth, gravityaccelerated them toward Earth, but when they were close to theMoon,...
- Q 4.     Explain how followingmeasurements are made. Please mention equipment used during thosemeasures.a.      Air qualityb.     Wind speedc.      Carbon Monoxided.     Sound levele.      Personal noiseexposuref.      Vibration
- Q A sound wave with an intensity level of 80.6 dB is incident onan eardrum of area 0.600 ✕ 10-4 m2. How muchenergy is absorbed by the eardrum in 4.0 minutes?µJ?A...
- Q A uniform disk of mass M is rotating freely about itscenter On its rim lie a cockroach of mass M/3 Initially thecockroach and disk rotate together with an angular velocity...
- Q A long solenoid with 1.65 103 turns per meter and radius 2.00 cmcarries an oscillating current I = 6.00 sin 120Ï€t, where I is inamperes and t is in seconds....
- Q A 425-m long spaceship passes by an observer at the speed of2.60×108 m/s. What length does the observer measure for thespaceship? .... mWhat is the rest energy of 37 g...
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