Prove the following commutator identity: [AB, C] = A[B. C]+[A. C]B.

Q: A block on a level horizontal surface of negligible friction is initially traveling at 20 m/s to the...

A: Given that,  The value of α is 240 N/s. The time interval for which the force exerted on the block i...

Q: Using the eigenvectors of the quantum harmonic oscillator, i.e., |n >, find the matrix element ,wher...

A: Given, Maxtrix element of momentum operator for harmonic quantum oscillator

Q: Masses are distributed in the xy-plane as follows: 10 kg at (2.0, 6.0) m, 4.0 kg at (2.0, 0.0) m, an...

A: Given, Masses distributed in xy plane

Q: A block of mass m = 1.85 kg is pushed a distance d = 3.15 m along a frictionless horizontal table by...

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Q: Estimate the average temperature of the air inside a hot-air balloon . Assume that the total mass of...

A: Given data: The total mass of the unfilled balloon and payload is M=500 kg. The upward buoyant for...

Q: Solve this attachment.

A: Given The circuit shown in Figure 2 is a common source n-channel (NMOS) amplifier M1 with its drain ...

Q: Consider a cylindrical specimen of some hypothetical metal alloy that has a diameter of 8.0 mm (0.31...

A: Given:-               Consider a cylindrical specimen of some hypothetical metal alloy that has a di...

Q: Studying neutrinos helped to explain how our Sun works but led to changes in theories of particle ph...

A: Introduction: A neutrino is a subatomic particle that is very similar to an electron but has no elec...

Q: Suppose that you have three vectors: fi (x) = 1, f2 (x) = x – 1, and f3 (x) = } (x² – 4x + 2), that ...

A: We have to Operate by D on f1  Since f1 is a constant function  <f1| = |f1>  

Q: 7. A horizontal pipe with circular cross-section delivers 4 kg of water per second. The diameter of ...

A: Initial velocity m˙1=ρA1v1v1=m˙1ρA1  

Q: Forget the answers written reanswer the question.

A:

Q: A ventilation fan with a moment of inertia of 0.0340 kg·m2 has a net torque of 0.110 Nm applied to i...

A: Given moment of inertia  (I)= 0.0340 kg.m2 torque (τ)= 0.110 Nm The fan starts from rest so, initial...

Q: The answer is 11513. Please show me how to get to the answer.

A: Given density of cars (in miles)  And length L=20miles Let's take a small element of length dx at d...

Q: A student drove to the university from her home and noted that the odometer reading of her car incre...

A: Average speed v¯=st

Q: 3) The figure to the right shows an "L" shaped container filled with water to the height shown. How ...

A: The pressure variation with depth is given as  P = ρgH Where H is the height of point at which press...

Q: An arbitrarily curved wire that carries a current between two endpoints in the presence of a uniform...

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Q: Juan, Jose, and Jokoy are pushing a table with a constant 515 N force. Juan is pushing the table eas...

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Q: 3. A rod with a mass of 10kg and a total length of 2 meters that can spin about an axis through its ...

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Q: Let f(ɛ) be the Fermi-Dirac distribution function and u be the chemical potential. Obtain the expres...

A: Solution: The Fermi-Dirac distribution function is given as Where

Q: Wonder Woman and Superman fly to an altitude of 1630 km, carrying between them a chest full of jewel...

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Q: A vibrating source at the ends of a taut string has a harmonic displacement given by the equation: y...

A: Given information: The displacement of the string is given by yt=0.1 m sin6 s-1t The tension in the ...

Q: Which of the following is true for vector addition in a linear vector space? I. It is commutative. I...

A: Given, Addition of vectors in vector space

Q: A 35.0g steel ball initially moving at 10.0 m/s in the positive x-direction collides completely elas...

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Q: A specimen of a 4340 steel alloy with a plane strain fracture toughness of 54.8 MPa/m (50 ksi/in ) i...

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Q: A simple alternator is a device that generates an emf. A rectangular loop is rotated with constant a...

A: Given alternator rotates with constant angular speed ω as shown in figure in the question. And alter...

Q: \

A: Given an object is at a distance u=22.3 cm to the left of a lens having focal length f=+45.9 cm Thus...

Q: An electron is placed at the position marked by the dot. The force on the electron is A. to the left...

A: Charged particles experience an electric force when placed in an electric field and get accelerated....

Q: i need help please

A: Given A crate has pulled a distance of 5 meters along a surface that gets progressively smoother. Th...

Q: A pipe delivers water at a rate of 1.6 x 10-4 cubic meters ofwater per second. The pipe consists of ...

A:

Q: A viscous liquid was flowing under laminar flow condition, through a 6 cm diameter circular pipe. A ...

A: Given: Diameter, D = 6 cm = 0.06m Distance, u =0.6 m/s r = 0.01 m

Q: Derive an expression for the lattice heat capacity of a solid following einstein model.Discuss the a...

A: The assumption of Einstein's theory are: 1. Atom in a crystal behaves as a quantum oscillator. On os...

Q: Determine the output voltage, vo, and the gain, , of the Operational Amplifier circuit shown Vin bel...

A: Given: The output voltage, vo, and the gain, v0/vin of the Operational Amplifier circuit is determin...

Q: (a) A car is traveling at 100 km/h when the brakes are fully applied, producing a constant decelerat...

A: (a) Distance travelled s1=v12-u122a1=0-100 km/h22-10 m/s21 m/s3.6 km/h2=38.58 m

Q: Question in the attachments

A: Given: The focal length of the concave mirror is 12.4 cm. The distance of the mirror behind the plan...

Q: I got the answer for A and B. I have to do C to G

A: (c) Given: The initial position of the particle is 0.270 m. The velocity of the particle is 0.230 ms...

Q: A 210 g mass attached to a horizontal spring oscillates at a frequency of 2.80 Hz. At t = 0 s, the m...

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Q: A copper rod with a mass of 2.45 kg and length 45.0 cm is initially at a temperature of 35.0° C. It ...

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Q: A cold storage room is constructed of an inner layer of 12.7mm of pine, a middle inner of 101.6mm of...

A: Given that, A= 1 m2

Q: The angle between the vectors that connect ther carbon atom to the hydrogen atoms in the methane mol...

A: Introduction: A bond angle is an angle formed between three atoms across at least two bonds. For fou...

Q: In the above figures f is located at the focal point of the lens. For each statement select True or ...

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Q: A 45.0-kg girl is standing on a 167-kg plank. The plank, originally at rest, is free to slide on a f...

A: Given: Mass of the Girl, Mg = 45.0 kg Mass of the plank, Mp = 167 kg Constant velocity, Vo = 1.30 m/...

Q: What amount of gasoline (ρρρρ= 680 kg/m3) is needed to fill a 412 cm in diameter spherical tank that...

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Q: The graph below is a snapshot of a wave at t=0.0s. The horizontal axis is x, measured in meters. If ...

A: The wavenumber of the wave is given by Where  = Wavelength of the wave   The angular frequency of t...

Q: Plese do 1, 2, and 3

A: From equation (1) we have, iћddtcacb = 0αћeiω-ω0tαћe-iω-ω0t0cacb Put β = ω-ω0, iћddtcacb = 0αћeiβtαћ...

Q: A three-phase line has an impedance of j2 Ohms( ZT=j2 Ohm) is shown below.The line feeds two balance...

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Q: Calculate the coil inductance when a current of 4A in a coil of 800 turns produces a flux of 5mWebs ...

A: The inductance of the coil is given by Where L = Inductance of the coil, N = number of turns of the...

Q: 1. What are the main components of a nuclear reactor?

A: Answer:   Introduction: It is here to introduce that the main components of a nuclear reactor are di...

Q: 19.) A tetherboll is connecteal to the top Cof a pole uith long that is 2.58 m om ongle of the pole ...

A: