Physics question and answers for September 02, 2023
- Q Which of the following can change the frequency of a wave? a)interference b) the Doppler Effect c) diffraction d) all of theabove
- Q What are the three ways that we can decrease the pressure of a gasinside a container?A. List three ways.B. Using the macro/micro tables show how each of these two susdecreases...
- Q Derive equation Vb=M/m*sqrt2gRcm(1-cos)
- Q An insulated beaker with negligible mass contains liquid waterwith a mass of 0.275 kg and a temperature of 65.9 ∘C. How much iceat a temperature of -18.7 ∘C must be...
- Q Chapter 8 Problem 83: A thin hoop of negligible width is rollingon a horizontal surface at speed v when it reaches an incline ofangle ?θ. (a) How far up the...
- Q using the appearance of the interval s2 = c2t2-x2-y2-z2 underthe Lorentz transformation demonstrates the contraction of length.in particular show that the length is contracted for an observermoving at a velocity...
- Q Global Warming. Is it real, is it a threat, and who's toblame?There are three issues here.Is the Earth warming abnormally now, or is this current trendnormal?If the Earth is warming...
- Q You are using a rope to pull a 15 kg suitcase along a levelpath. There is friction between the suitcase and the floor, so youmust pull with some difficulty to...
- Q A billiard ball A moving at a speed of 2.4 m / s bumps into abilliard ball B of the same mass, whichare at rest. After the impact, A moves...
- Q In a TV picture tube the accelerating voltage is 17.0 kV, andthe electron beam passes through an aperture 0.40 mm in diameter toa screen 0.230 m away. What is the...
- Q A 2.0-m-tall basketball player is standing on the floor adistance d from the basket, as shown in the figure below.He shoots the ball at an angle of 40.0o above the...
- Q A 6.0-ft-tall girl stands on level ground. The sun is 23 ∘ abovethe horizon.How long is her shadow?Express your answer using two significant figures.b) A 5.0-m-wide swimming pool is filled...
- Q if density
- Q What is a joule? What is the equivalent unit in theEnglish system?
- Q Describe magnetic inductance and give examples.Describe R-L, L-C, and L-R-C seriescircuits, and give examples.PLEASE DO NOT WTITE IT BY HAND.
- Q A charged paint is spread in a very thin uniform layer over thesurface of a plastic sphere of diameter 20.0 cmcm , giving it acharge of -19.0 μCμC .Part A:...
- Q Three 90.790.7 g masses are connected in a triangular shape bymassless rigid wires as shown in the first image (which is notdrawn to scale). The coordinates of each mass are...
- Q A 8.6-kg cube of copper (cCu = 386 J/kg-K) has atemperature of 750 K. It is dropped into a bucket containing 5.1 kgof water (cwater = 4186 J/kg-K) with an...
- Q - In your own words, explain potential energy, kinetic energy,conservation of energy and examples in daily life.- In your own words, explain the definition of work inPhysics.- In your own...
- Q While taking photographs in Death Valley on a day when thetemperature is 50.0°C, Bill Hiker finds that a certain voltageapplied to a iron wire produces a current of 1.000 A....
- Q Assume a cup contains about 12 oz or 340 g of water at roomtemperature, about 20 degree C. The electric kettle draws energyfrom the wall outlet at a rate (Power)...
- Q Suppose the electron in a hydrogen atom is modeled as anelectron in a one-dimensional box of length equal to the Bohrdiameter, 2a0. What would be the ground-stateenergy of this \"atom\"?______________eV
- Q An airplane pilot wishes to fly to his destination 500 mi duewest, but the wind is blowing at 23.1 mi/hr toward 14.1° north ofwest. The speed of the plane relative...
- Q A metallic circular plate with radius r is fixed to a tabletop.An identical circular plate supported from above by a cable isfixed in place a distance dd above the first...
- Q An object is formed by attaching a uniform, thin rod with a massof mr = 7.25 kg and length L = 5.56 m to a uniformsphere with mass ms =...
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