Question 3: Prove that the average excited phonons satisfy the Boltzmann- Einstein distribution (or Planck distribution).

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: A small sphere of charge q = +66 μC and mass m = 5.4 g is attached to a light string and placed in a…

A:

Q: If a 0.010 C charge is moving throough a 0.6 T magnetic field

A: Given: Charge on particle is q=0.010 C Magnetic field is B=0.6 T Velocity of particle is v=305 m/s…

Q: Earth has a net charge that produces an electric field of approximately 168 N/C downward at its…

A: Given  Electric field, E = 168 N/C  Radius of earth, R = 6.37× 106 m  Net charge of earth, Q

Q: Three charged particles are located at the corners of an equilateral triangle as shown in the figure…

A: let q1 = 2.8 x 10-6 Cq2 = 7 x 10-6 Cq3 = 4 x 10-6  C

Q: Four equal +2.00-µC point charges are placed at the corners of a square 4.00 m on each side. (k =…

A:

Q: The force acting on an object is given by F, = (7x - 12) N, where x is in meters. (a) Choose the…

A: Here force is given as F = 7x - 12  Here x is in meter and F is in Newton .

Q: Find the number of turns a solenoid coil with length of 0.06 m should have in order to produce a…

A:

Q: N vs. TIME graph below, click on the spot where the VELOCITY IS ZERO (the arrow will be placed where…

A: Introduction: When the body does not gets displaced with time, the velocity is said to be zero. So,…

Q: The coil in a loudspeaker has 55 turns and a radius of 3.7 cm. The magnetic field is perpendicular…

A: Given: In this question, the given details are, The coil in a loudspeaker has 55 turns and a radius…

Q: hown in the figure below, two long parallel wires (1 and 2) carry currents of I, = 2.86 A and I, =…

A: calculate the net magnetic field at point and find direction as per shown.

Q: An LC circuit like the one in the figure below contains an 95.0 mH inductor and a 26.0 μF capacitor…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: A 44.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 144…

A:

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

A:

Q: 3. If V = 12 V in the circuit below R = 100 N R2= 200 N %3| R3 = 100 N R5= 300 N R4 = 150 N R, = 100…

A: Solution: Given that V = 12 V and the values of other resistors

Q: The moment of inertia of a solid cylinder of radius R, mass M and length L, perpendicular to its…

A: Write the expression for the moment of inertia of the cylinder as given above. Here M signifies…

Q: You drop a 10 Ib bowling ball and .1 lb piece of paper with air resistance. Which object will hit…

A:

Q: 4. One on end of a pipe with a diameter of 5.00 cm, the pressure is 100 kPa and the speed of the…

A: Fluid mechanics.

Q: Q5 By performing nodal analysis to the circuit in the following Figure, calculate the voltage V1.…

A: in this question we use kirchoff's law at circuit.

Q: 11. A spaceship is traveling with a velocity of 0.8c relative to the Earth. What is the momentum of…

A:

Q: 5) Let's use this expression to solve a problem. Star X and Star Y are intrinsically identical…

A: Given, star X is located 20 light-years from earth star Y is located 40 light-years  from earth…

Q: I need help with 14.

A: The mean density of moon is,

Q: Consider the 68.0 kg mountain climber in the figure. 31 Fup 15 (a) Find the tension in the rope (in…

A:

Q: A loop of wire with radius r-0.035m is placed in a region of uniform magnetic field with magnitude…

A: radius (r) = 0.035 m initial magnetic field = 0.65 T final magnetic field = 7.5 T time (t) = 9.5 s…

Q: thanks for the help

A:

Q: A metal bar 6.0 m long, clamped at its center and vibrating longitudinally in such a manner that it…

A:

Q: 1- Write down a relation to find the magnetic force acting on a current carrying conductor and draw…

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Q: Moving charge generates a magnetic field. A) True B) False

A:

Q: The Apollo 8 mission in 1968 included a circular orbit at an altitude of 111 km above the Moon's…

A: Mass of spacecraft m = 15000 kg Moon's mass M = 7.35 × 1022 kg Moon's radius R = 1738 km = 1.738 ×…