A fire truck emitting a 450 Hz signal passes by a stationary detector. The difference in frequency measured by the detector is 58 Hz. If the speed of sound is 345 m/s, how fast is the fire truck moving?(toward and movie away) (5)

Q: 3:- Calculate the electron and hole concentration under steady-state illumination in n-type silicon…

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Q: Ex. 33: In an interference experiment the distance between the two identical sources is 0.3 mm and…

A: To find-(1) The bandwidth(2) The distance between the central bright band and the 10th bright…

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A: (I) Maxwell Boltzmann statistics  The particles that follow Maxwell Boltzmann statistics are…

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A: Like charges repel each other and their electric field lines also repel each other . Unlike charges…

Q: 1. Using Venn diagram, compare and contrast KCL and KVL. KCL KVL 2. For the junction in the network…

A: Part(1) Using Venn diagram, compare and contrast KCL and KVL. Part(2) For the junction in the…

Q: 9 An extravagant scientist announces the end of the world due to the following spontaneous decay…

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Q: The refractive indices of water for red are and violet colours 1.325 and 1.334 respectively. Find…

A: To  find-Difference in velocities (Cred-Cviolet)=?Given-μred=1.325μviolet=1.334Ca=3×108 m/s

Q: 1. Consider a beam of electrons that moves from the electron gun towards the screen of a cathode ray…

A: We have given, Potential difference (V) = 15 kV = 15000 V Magnetic field (B) = 250 μT = 250×10-6 T…

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A: It is known that moment of inertia of shaded area about x-axis is, Ix=[M.I. of ∆OAB about…

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A:

Q: A parallel-plate capacitor with plate area A = 0.44 m² and plate separation d = 4.14 x 10 m is fully…

A: Given, A parallel plate capacitor has area of 0.44 m2 and plate separation d=4.14×10-4m

Q: sinh z

A:

Q: Three charges are arranged on a straight line as shown in the figure. Wha electrostatic force on the…

A: Visualize the problem:      -2q              q                q                r                 r…

Q: potentiomeley experiment to compare sum d by difference on a emf of two celle method balancing found…

A: To find-Ratio of two emf E1E2=?GivenBalancing length for sum method (l1)=250 cmBalancing length for…

Q: AA>) mass defect that occurs as a result of the fission of nihonium-284 (Z = 113) is 0.32205 amu,…

A:

Q: 3) A crate of mass of mass 180.0 kg is pushed with intial speed of 33 m/s along a concrete floor. If…

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Q: 2. Fill out the table below on the Summary of Images formed by Concave Mirror Object Distance Image…

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Q: Assume that V is a function of y and at y=2, V=5 volt and at y = 4, V = 10 volt. a) Find V, E, E and…

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Q: A 5.0-A current flows through a 10-turn square coil each side of length 0.12 m. the coil is in a…

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Q: PRACTICE EXERCISE 7.5 Plane y = 1 carries current K = 50a, mA/m. Find H at (a) (0, 0, 0) (b)…

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Q: The flow of a liquid in a 2-in. diameter steel pipe produces a pressure drop due to friction of 60…

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Q: A transformer converts 240 V AC to 60 V AC. The secondary has 75 turns. The number of turns in…

A: To find-Np=?Given-Conversional voltage=240 V to 60 V

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A: We know that-The expression between change in energy and wave length of photon emitted is∆E=hcλ…

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A: To find the minimum wavelength of x ray at 35 kV and 45 kV

Q: 2. The 12 kg disk with a radius of 650 mm is rolling while slipping under the constant force of 210…

A: It is given that, Mass of wheel, m=12 kg Radius of Gyration of wheel, rg=300 mm=0.3 m Kinetic…

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A:

Q: If the difference in velocities of light in glass and water is 0.25 x 10³ m/s, find the velocity of…

A: To find-Velocit of light in air (Ca)=?Given-Different in velocities of light in glass and water…

Q: Q1:- A GaAs sample with no = 3x10¹5 cm³ is illuminated with light and 10¹4 electron hole pairs/cm³…

A:

Q: 38. A 2,000-kg ore car rolls from rest 50.0 m down a frictionless 10.0° incline. If there is a…

A: Kinematics.

Q: A pressure gage at elevation 6m at the side of the tank with liquid reads 90 kPa. Another gage at…

A: Given that: For Elevation, h1=6 m Pressure, P1=90 kPa For Elevation, h2=4 m Pressure, P2=110 kPa

Q: VI. Determine all the branch currents in this circuit using Kirchhoff's Analysis. Problem…

A: Solution:-                         Given circuit,…

Q: 6. The diagrams below shows a straight conductor between the poles of a permanent magnet. Complete…

A:

Q: Two planets A and B, with masses of 9 x 106 kg and 7 x 106 kg, respectively, are separated by a…

A:

Q: Light is incident at an angle I on glass slab. If reflected ray completely of is polarized, then the…

A: To find-Angle of radiation (r)=?Given-Angle of incidence=iThe reflected ray is completely polarized.…

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A: Given : weight of water=2000gsurcose in moles=1 moleAt temperature=21°CThe vapour Pressure=18.87 mm…

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A: The accelration of the system is harmonic in nature:axt=12 sin ωt+ϕω=Angular velocityϕ=phase…

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A: Given Block weight W       = 85 lb Distance                     = 6 ft Plate thickness           =…

Q: Make a table showing the theoretical effect of: (a) varying the slit width to the diffraction…

A: Diffraction is the phenomenon of spreading of light waves when a light wave passes through the edges…

Q: An AM transmitter has a carrier power output of 50 W. What would be the to- tal power produced with…

A: Answer is as below

Q: Ex. 3: Find the longest wavelength in Paschen series (Given R=1.097 x 107 m¯¹)

A: To find-Longest wavelength in paschen series=?Given-Rydherg's constant (R)=1.097×107 m-1

Q: 7 x (m) 30 20 10 B 2 4 6 8 Part A Find the average velocity of the object from points A to B, B to…

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Q: 1) Gauss's theorem can be applied to Figures 1 (a) and (b) since the surfaces are closed, piecewise…

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Q: G4

A: Given that:Mass, m=6.22 kg=6.22×103 kgE=728 kJ=728×103 JTi =20.5°CC=0.385 J/g°CWe know that:−E=mc∆T…

Q: The diagram below shows two light rays emanating from the top of the object and incident towards the…

A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Q: 40. (1-2)-¹

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Q: Fred the lightning bug has a mass m and a charge +q. Jane, his lightning-bug wife, has a mass of m…

A: Gravitational force is always attractive. Electric force for unlike charges are attractive.

Q: Electronics Home Work the circuit shown in figure. Assume the diode to be ideal. :R2 R1 R3 س: جد…

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Q: An LRC series circuit (L = 170. mH, R = 36.0 Ohm) is driven by a 120. V (rms), f = 60.0 Hz ac power…

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Q: The De-Buoglie wave length of 0.1 gm guains of sand blown by a wind at the speed of 20 m/s Ch = 6.63…

A: To find-De Broglie wavelength (λ)=?Given-Mass of grain of sand (m)=0.1 gm=1×10-4 kgSpeed of grain of…