21) An electron in a Hydrogen atom in an external magnetic field H=B2. Assuming the electron initially is in an eigenstate of Sy =+ What is the expectation value of the operator S, later at time t?

Q: Describe how objects can become electrically charged Use Coulomb's law to compute the force between…

A: (i) How objects can become electrically charged. (ii) Force between two charges using Coulomb's law.

Q: 10.0 m. Y 500 N T₁ 3.0 m 6.0 m X

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Q: 5. Prove that: Oln T a) Os =C, OIn P alnT b) ), =C,n), aIn V

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A: The algebraic equation is given as, a=b+c2d The variables are given as, b=4c=-8d=16

Q: 7.7 Water at 10°C flows perpendicular to a 3 cm O.D. cylinder at 70°C. The velocity is 1 m/s.…

A: Given: Let us consider the given data, Ti=10°CTs=70°CD=3 cm Let's determine h¯.

Q: Given that { 12p nC/m³, Pv (0, 1<p< 2 otherwise Determine D everywhere.

A: we have to find out Vector D by the help of given Rho v.

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Q: 2. A magnetic coil produces 110,000 Maxwells with 2000 turns and with a current of 2 Amp. The…

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A: The solution of thi question is

Q: Determine the number of significant figures in the following numbers. a. 6.12 b. 4.009

A: Given data:  Two numbers 6.12 and 4.009 Required: The number of significant figures

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Q: In the figure, block 1 has mass m₁ = 483 g, block 2 has mass m₂ = 560 g, and the pulley is on a…

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Q: add the vector

A: Let the three vectors be denoted as A, B and C.Resolve the three vectors along the coordinate axes…

Q: 9. Convert 3.14 rad into degree. OA. 180 OB. 45 O C. 60 OD. 30

A: According to question we need to convert rad to degree .

Q: The dot product of a̟ · a, is equal to: a. sin 0 cos o b. sin ø cos e c. cos o cos 0 d. sin ø sin 0

A: The unit vector ar in cartesian coordinates is given by

Q: planes nave the same mechanical advantage? Write your answer here: 50 cm 50 cm 5cm 3m 40 cm 4m 4m…

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Q: Consider the semiare of charge shown in the figure, that has an opening angle of 0o = 47° and a…

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Q: 5. Vector A S has a magnitude of 35.0 units and points in the direction 325° counterclockwise from…

A: Given : |A| = 35 units θ = 325° counterclockwise from the positive x axis

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A: To determine: The vector within the unit cell (1 , 0 , -2)

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A: Given data :  Half lives of uranium t1/2 = 4.5 × 109 years. Half lives of radium t1/2 = 1620 years.…

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Q: 1. Find the unit vector in the direction w^ = 6^ - 2j^

A: The unit vector in the direction of  w→=6 i^-2 j^. Given, w→=6 i^-2 j^

Q: An ideal monatomic gas expands adiabatically from 0.530 m³ to 1.72 m³. If the initial pressure and…

A: Given:-  An ideal monatomic gas expands adiabatically as the volume of gas changes as  Vi = 0.530 m3…

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Q: Plz solve

A: Given that,Mass of skater : m = 60 (kg)Initial angular speed : ω =6 (rad/sec)Initial moment of…

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A: Answers have been boxed.

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Q: on

A: Given: Mass is 50 kg Distance is 0.3 m

Q: 6. If vector A = i+ 2j+ 3k, and vector B = i+2k. The product A.Bequals A) C) B) D) 8. i+ 2j i- 2j

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