A flywheel having a moment of inertia of 900 kg m2 rotates at a speed of 120 rev/min. It is slowed down by a brake to a speed of 90 rev/min. How much work was done by the brake?

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Q: v) n = 1,1= o, mị = 0, mş = ½ and n = 1, 1 = 0, m¡ = 0, mɛ = -1/2 %3D

A: Introduction: The set of numbers used to describe the position and energy of the electron in an atom...

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A: The question consists of 4 sub-parts.  As per our policy, only the first 3 can be answered!

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A: Given: Slit width is d=0.6mm. Distance of screen from the slit is D=1m. Wavelength of light is λ=480...

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A: Note:- We’ll answer the first question since the exact one wasn’t specified. Please submit a new que...

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A: As given in the problem, THe resultant force can be given by; FRx=F1x+F2x+F3xFR sin30 =F1 cosϕ+F2sin...

Q: A satellite of mass 1250 kg is to be placed in a circular orbit at a height h=210 km above the Earth...

A: Part (a) Given: The mass of the satellite is m=1250 kg. The height of the satellite is h=210 km. Th...

Q: The city of Denver is 1 mile above sea level.  What is the difference in air pressure, in kPa, betwe...

A: Given:-          

Q: The figure below shows three point charges that lie along the x-axis. Determine the magnitude and di...

A: Given: The value of the first charge is 6×10-6 C.             The value of the second charge is -5×1...

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A: Wavefunction The wavefunction of a particle is a mathematical function that encodes all the informat...

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A: Given: Three point charges are arranged as, Find (a) the magnitude and (b) thedirection of the elec...

Q: 14.61 The block B, which can move freely in the horizontal direction, is at rest when it is struck b...

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Q: 3.10 The normal force on the head of the femur in the knee is 300 N. Find the frictional force for a...

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A: The solar radiation has two main components that is beam radiation and diffuse radiation.

Q: 2) Prove that: a) dx' dx' b) F»] ) = dF Ldx dx c) [x.p?]= 2h²d/dx

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: Example2: A ring of radius a carries a uniformly distributed positive total charge Q. Calculate the ...

A: According to coulomb's law the electric field at a point (x,y) due to a charge at (x',y') is given b...

Q: Only cartridge fuse can be used for over current protection. Select one: O True O False

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Q: Q:// Find the work done in moving a point charge Q=3 µC from (4m, x, 0) to (2m, x/2, 2 m), cylindric...

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Q: Find the angular extension of the first-order spectrum of white light from 390 nm-780nm incident ver...

A: We will  Start with the basic assumption of bragg's law , and we will find the angular extension for...

Q: Q1/ 0.8 m³/s of air at 5°C WBT and 10°C DBT enter a chamber. The air absorb 40 KW sensible heat whil...

A: Given, Volume flow rate of air Q˙v=0.8 m3/sec Inlet condition t1'=50C  WBTt1=100C DBTHeat absorbed Q...

Q: Q8/ A piece of copper as shown in Figure below has an inner radius of 6 cm, radial thickness of 3 cm...

A: Given data, inner radius=6 cmradial thickness=3 cmaxial thickness=4 cmresistivity of copper ρ=1.724×...

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A: Introduction: Before installing a line assembly in an aircraft, inspect the line carefully. Remove d...

Q: Q: A disk of radius R has a uniform surface charge density o. Calculate the electric field at a poin...

A: The ring of radius r and width dr shown in figure has a surface area equal to2πr dr.The charge dq on...

Q: Advanced Physics Question

A: Given: The masses and the length on the meter stick is given in the figure.

Q: Q6) A string of infinite length is stretched from -o0 to +00 and subjected to the following initial ...

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Q: a ball is dropped and takes 0.47 seconds to travel past a window 3.50 meters tall. from what height ...

A: time=0.47 s d= 3.50 m d=vt +12gt2vt=d-12gt2v=1td-12gt2=10.473.50-12g0.472=5.14 m/sThe velocity of st...

Q: (b) Consider a particular phone that has a battery rated at 4,000 mAh. The battery operates at a po...

A: Given Battery Power               = 4000 mAh Battery voltage             = 3.90 V Electricity cost  ...

Q: 6. A loop of a wire has the shape shown in the drawing. The top part of the wire is bent into a semi...

A: Given, r=0.18 m B=0.79 T Area of semicircle is A=πr22=0.050 m2during half revolution the semi circle...

Q: Problem 4.9 Determine the moment of the 80-lb force 80 Ib about P. 20 40 3ft Ans. M=207.8 ft.ib Ccw

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Q: 58. A boy shoots a basketball in a high arcing shot. When the ball is at the highest point of its fl...

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Q: Task VI: Part 1: For the series RC circuit shown in Figure 4, answer the following questions and sho...

A: Given data: The capacitance is C=4.7 μF. The RMS voltage is V1=120 V. The frequency is f=60 Hz. The...

Q: particle moves according to a law of motion -ro, t20. where t measured in seconds and s in feet. (If...

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Q: 8. A pendulum is pulled to one side and released. It swings freely to the opposite side and stops. W...

A: Given, Energy diagram for pendulum 

Q: 4. Three capacitors are attached to the EMF as shown. The capacitances are C1 = 1 µF, C2 = 5 µF and ...

A: Subpart (a): It can be seen from the diagram that capacitors C1 and C2 are in parallel. Thus, the po...

Q: Find points in the unit cell of silicon that are symmetry points with respect to spatial inversion. ...

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Q: PHYSICS (CALCULUS BASED) ABOUT CONSTANT ACCELERATION, KINEMATIC EQUATIONS, FREE-FALL ACCELERATION

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Q: H.W) Calculate the concentration of the electrons and the holes in intrinsic silicon at (300°k). The...

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Q: Exercises: 1. Sketch the output (Vo) for the circuit of Fig. 7-10 for the input shown (V) when |Vm| ...

A: Given data, R = 5 kilo ohms Vz = 10 volts

Q: 2. An AC generator has 75 rectangular loops on its armature. Each loop is 14.0 cm long and 10.0 cm w...

A: Given: The number of rectangular loops on its amateur is 75. The length of the loop is 14.0 cm. The ...

Q: Evenly distributed over a quarter of a ring with a radius of r = 6 cm positive charge with linear de...

A: Given: The radius of the ring is 6 cm. The positive charge has linear density 64 nCm. The charge pla...