Physics question and answers for October 05, 2023
- Q Twopoint charges, 3.4 uC and -2.0 uC, are placed 5.0 cm apart on thex-axis. Assume that the negative charge is at the origin and thepositive x-axis is directed from the...
- Q A particular make of light bulb contains argon at 50 Torr andhas a tungsten filament of radius 0.10mm and length 5.0cm. Whenoperating, the gas close to the filament has a...
- Q Two long thin parallel wires 13.0 cm apart carry 25-A currentsin the same direction.Part ADetermine the magnitude of the magnetic field vector at a point10.0 cm from one wire and 6.0 cm from...
- Q Q: Do resonance positions get harder to find lower down in thetube?Note: this is a questions based on a physics lab revolved aroundthe idea of sound waves and the measurement...
- Q In your opinion, what are the primary limitations to theaccuracy of outdoor air-temperature sensors, and what could be doneto reduce these limitations?
- Q A square insulating sheet 90.0 cm on a side is heldhorizontally. The sheet has 8.50 nC of charge spread uniformly overits area.1.Calculate the magnitude of the electric field at a...
- Q A small sphere with mass 2.10 g hangs by a thread between twolarge parallel vertical plates 5.00 cm apart (Figure 1). The platesare insulating and have uniform surface charge densities...
- Q A mirror faces a cliff located some distance away. Mounted onthe cliff is a second mirror, directly opposite the first mirror adistance 1,772.35 away and facing toward it. A gun...
- Q Explain in words and complete sentences the physical meaning ofeach of Newton's three laws of motion. Note: Do not simply restateor paraphrase the statements of these laws in your textbook....
- Q Consider the head-on collision between a water molecule, mass18u and a nitrogen molecule mass 28u. Prior to the collision, thenitrogen moving to the right at +0.4390 km/s and the water...
- Q A skateboarder starts up a 1.0-m-high, 30? ramp at a speed of7.2m/s . The skateboard wheels roll without friction. At the top,she leaves the ramp and sails through the air.How...
- Q Diffraction is defined as the bending and spreading of wavesaround small items, slits, or corners. Sound exhibits diffractionjust as light does. In your initial discussion post, address thefollowing:Identify two everyday...
- Q Fert Berfel is a very naive individual who sets out to takecurrent readings with an ammeter as one would take voltagereadings: by simply touching the probes to two locations. Thecircuit...
- Q identify the pros and cons of using mirrors versus lenses ineach of the following applications:a large, ground-based, astronomical telescopea small “spy†scopea terrestrial telescope designed only to read licenseplates
- Q A physics student who weighs 516.0Â Â N stands on abathroom scale in an elevator that is supported by an elevatorcable; the mass of the elevator, including the student inside, is868.0Â Â kg ....
- Q The uncertainty principle arises from a common-sense idea: Tomeasure something, you must affect it somehow. For instance, whenyou use a pressure gauge to measure air pressure in a car tire...
- Q Land footprint of solar energy:(a) In 2016, Arizona’s total annual electricityconsumption was 78.05 million MWh. What is this in terms of kWh perday?(b) Land footprint: The average dailyinsolation in Phoenix...
- Q The figure below is a section of a conducting rod of radiusR1=1.30mm and length L=11.00minside a thick-walled coaxial conducting cylindrical shell ofradius R2=10.0R1Â Â and the (same) lengthL. The net charge on...
- Q A stone is dropped from the roof of a building, 1.10s after thata second stone is thrown straight down with an initial speed of20.0 m/s & the two stones land...
- Q 1. What is ductile fracture? What is brittle fracture? (10 pts)8. Please describe the differences between ductile fracture andbrittle fracture. (10 pts)
- Q What is the direction of the magnetic field of a straight,current-carrying wire?
- Q consider the neon atom in all possible n+1, l-1 excited statesthat relax down to the ground state and emit light in the process.(a) Write the atomic term symbol for each...
- Q A mass spectrometer is being used to separate common oxygen-16from the much rarer oxygen-18, taken from a sample of old glacialice. (The relative abundance of these oxygen isotopes is related...
- Q Suppose the length of a clock's pendulum is changed by 1.000%,exactly at noon one day. What time will it read 24 hours later,assuming it kept perfect time before the change?...
- Q a)An object of mass ?m rests on a horizontal frictionlesssurface. A constant horizontal force of magnitude ?F is applied tothe object. This force produces an acceleration:alwaysonly if ?F is larger...
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