A cathode-ray tube accelerates electrons to a speed of 26500 kms−1V. What is the potential difference across the tube?

Q: Calculate the uncertainty in the momentum expressed in units of MeV/c of an electron confined to a r...

A: Given, diameter of an atom is 10-10m To find the uncertainty in the momentum expressed in units of M...

Q: QUESTION 4 a) An extrinsic semiconductor may contain both donor and acceptor atoms and their related...

A: Given : Eg=1.42eV, EA=0.01eV, ED=0.02eV, hc=1240eV.nm The energy of the photon emitted when the elec...

Q: Example 1.9. A member LMNP is subjected to point loads as shown in Fig. 1.14. Calculate : (i) Force ...

A: i. The force P is necessary for equilibrium so, resolving the force on the rod horizontally, ∑Px=0-P...

Q: A particle of mass m rest on a horizontal floor with which it has a coefficient of friction u(mu). I...

A: Given data: Mass of the particle m. Coefficient of friction μ. Free body diagram: Here, F is any ...

Q: Two Bosons are placed in a one dimensional square infinite well defined as 0, V(x, y) = { 0 <x <a ot...

A: Given, Two Bosons are in one dimensional square infinite well 

Q: A loop of wire is located in the x-y plane within a magnetic flux density of B = î 2 cos (6 · 10°t –...

A: The square loop of wire has a side length of 5 cm, or 0.05 m and is placed in the xy plane.  This sq...

Q: Why M21 is called mutual inductance of two loops?

A: Mutual inductance: When two coils are brought close together, the magnetic field in one of them tend...

Q: Please show how to derive this equation of constant acceleration: θ = θ0 + (ω + ω0) t/2

A: Given: Final angular position,  θ Initial angular position, θ0 Final angular velocity, ω Initial ang...

Q: a full comparison discussion (with ween Fading effect and Donald Duck efI

A: Given: To explain the discussions of the effects of Fading and the Donald Duck as,

Q: Question 13 50 mm Two small plastic balls are hanging on silk threads, 50 mm from each other, as ind...

A: Since you have posted a question with multiple subpart, we will solve first 3 subpart for you. To ge...

Q: Q.2: If we have a circular disc rolling down the inclined plane with no slipping, find the accelerat...

A: Given, circular disc is rolling doe=wn the inclined plane. It is mentioned that motion is rolling wi...

Q: 6.00 2 ww 25.0 N 8.00 2 ww- 20.0 2 In the circuit shown above the battery has negligible internal re...

A: Given data, Current through resistor 8 ohms = 4 A

Q: A rod 10.0 cm long is uniformly charged and has a total charge of -25.0 µC. Determine the magnitude ...

A:  Given that,Length of the rod : L = 10 (cm) = 10×10-2 (m)Charge on the rod : q = -25×10-6 C or q =25...

Q: shelen

A: Given: A formula of debye shielding is shown as, λD =εokB Te2 ηo  

Q: uppose that an energy level (j) includes 6 states (gj =6) and 3 particles (Nj =3). What will be the ...

A: Given data, Number of states (gj) = 6 Number of particles (Nj) = 3 

Q: Observe the numbering 1. Circuit that is plain black and white 2. Circuit that has blue elements So...

A: (1) For the circuit that is plain black and white Given: E=12VR1=6.8kΩ,R2=18kΩR3=2kΩ,R4=8.2kΩ Calcul...

Q: Suppose that you have 1 mol of hydrogen atoms in the ground state. If the atoms are irradiated with ...

A: Given, Total number of mole of hydrogen atom is, N = 1 Then total number of hydrogen atom in 1 mole ...

Q: If an electron is present in a 1D box of length L/2 then what will be it's energy and wave function ...

A:

Q: A 10.0-g bullet traveling horizontally with a speed of 400 m/s strikes a 15.0-kg door, embedding its...

A: Given: The mass of the bullet is m = 10 g The mass of the door is M = 15 kg The width of the door is...

Q: Around 2.5 centuries ago, several physicists of the time came up with the notion of a dark star.  Th...

A: Given: Mass of the star is M=3.2×1030kg. The gravitational constant G=23×10-10N·m2kg2. Let us consid...

Q: A person walks 50m [up] a flight of stairs in 1.0 min, then sits and waits at the edge of drop for 1...

A: We will consider the upward direction to be positive and the downward direction to be negative. This...

Q: 3 m d F1 4 3 0.5 m 0.5 m 45 3 F1 F For the above diagram, given that F1 = 9 kN, 0 = 40 degrees and d...

A: Concept used: Couple moment is given as the product of force magnitude and distance between two forc...

Q: A boy starts from point A and passes point C of a track ABC shown in the figure. Portion AB of lengt...

A: Solution: Let T be the total time, t1 be the time for going from A to B and t2 be the time for going...

Q: Four parallel conductors are arranged as shown in the figure. The conductors carry currents I1, l2, ...

A:

Q: Assume gold sinters by a lattice diffusion process with an activation energy of 181 kJ/mol. A 40 μm ...

A: Solution-Given thatActivation energy (Ea)=181 kJ/molInitial temperature (T1)=1000°=1000+273=1273 KTi...

Q: An object with mass m- 2kg moves in 1 dimension. At x 0 the velocity of the object is Smisi. A varia...

A: Given: Mass of object m=2 kg. Velocity at x=0m is u⇀=5ms i^. Variable force is F⇀=3Nm2x2 i^. Object ...

Q: A girl having a mass of 25 kg sits at the edge of the merry-go-round so her center of mass Gis at a ...

A: In this case, a girl having some mass sits in a merry-go-round in which the center mass of the girl ...

Q: The supply voltage from the autotransformer to the filament transformer is 60 V. If the turns ratio ...

A: An auto transformer is a transformer which consists of a single winding. This single winding acts as...

Q: (d) Can we apply equipartition of energy for electron gas?

A: No, we can't apply equipartition theorem for electrons. 

Q: 27. Determine Z, Z, and A, for the network of Fig. 9.58. 28. Repeat Problem 27 if ra = 20 k. 29. Det...

A: Solution; 27. After redrawing the circuit the10 mega-ohm resistance is connected to an input signal....

Q: Figure 1 below shows two positive charges and two negative charges that are placed d apart. Given th...

A: Electric  field due a charge (q) at a distance  r from it is given by     E=kq/r²   Electric field a...

Q: A force of 20 N acts on an initially stationary object with a mass of 2000g. What is the velovity of...

A:

Q: C. When the asteroid is located exactly halfway between the Earth and the Moon, determine the net gr...

A: Concept used: Gravitational force is directly proportional to product of masses and inversely propor...

Q: Consider the finite difference grid shown in the figure below that is expressed in the polar coordin...

A: Concept used: Polar co-ordinates specify location in angular motions.  

Q: 1- chapter24-question31 A 4.0 pC point charge is placed at the center of a hollow (inner radius = 2 ...

A: In this case, the point charge having some charge is placed at the center of the hollow conducting s...

Q: Five masses in a region where the acceleration due to gravity is 31.5 ft/s² are as follows, m, is 50...

A: Concept used: Gram is a unit of mass. Gram-force is unit of force. Total mass is sum of all masses. ...

Q: A material point moving along a straight line enters an 87.5 m segment with speed 5.0 m/s and leaves...

A: Given: Length of segment is s=87.5m. Speed of moving point to enter is u=5.0ms. Speed of moving poin...

Q: (1) Stars can be considered ideal blackbodies. A distant star is observed to emit a spectrum of ligh...

A: Since we only answer up to 3 subparts, we will answer the first three. Please resubmit the question ...

Q: C)A line charge of (p = 3 µC/m) lies between (1,0,0), and (0,1,0). Find (E) at origin.

A: Given: The line charge density is ρ = 3 μC/m The line charge lies between (1,0,0) and (0,1,0)

Q: If J=3.6sin(nx) âg A/m2, the time rate of increase in the volume charge density at point (0,3,1) in ...

A:

Q: If J=3.6sin(nx) âg A/m2, the time rate of increase in the volume charge density at point (0,3,1) in ...

A: Concept used: The continuity equation relates the current density with volume charge density. It tel...

Q: A comet orbits a star with a highly eccentric elliptical orbit. At its nearest point, the comet is ...

A: Given, Nearest speed, v1=78km/s Closest point, r1=0.3AU Farthest point, r2=14000AU Let the speed at ...

Q: A current of 34.5 A passes clockwise around a large ideal solenoid which is 1.66 m long with 233,975...

A: The current passing through the solenoid is given as, I=34.5 A The length of the solenoid is given a...

Q: Q1. Two straight wires carry current in the +z direction. The wires are parallel with spacing d as s...

A: Magnetic field(By) along the y-axis. given,  Angle made with the y-axis=αcurrent carrying=Ispacing b...

Q: Ohms Law: You are designing a 3D printer lab. You will be equiping it with Dremel 3D45 printers. The...

A: In this case, the printers are connected to an AC circuit. And the printers give some average curren...

Q: multiple

A: The statement is true. Primary electron ionize the molecules in GM counter . Then we get secondary e...

Q: (x) Why band structure arises in solid?

A: Introduction: Band structures of a solid describes the range of energy levels that electrons may hav...

Q: 14- chapter23-question17 What is the repulsive electrical force between two protons 4x10 15 m apart ...

A: Solution-Given thatDistance between two protons (r)=4×10-15 mCharge on each proton(q1=q2=e)=1.602×10...

Q: Calculate the intensity of the magnetic field created by the current I=3 A passing through a hollow ...

A: Given that: I=3 AN=400 turnsl=0.06 m

Q: Calculate the bandgap of a quantum dot.

A: The energy in a one dimensional potential is expression as, Ew=h28×m×r2---(1) Here, h is the planck'...