Show that the. components Ê;(r1, t1) and Ê;(r2, t2) of the quantized electric field operators commute if the events r1, t, and r2, t2 are not connected by a light cone.
Q: Looking at these graphs of position versus time. At what position does the ball have the minimum vel...
A: At what position does the ball have the minimum velocity? Maximum velocity?
Q: A solenoid has 560 closely spaced turns, a length of 12.0 cm, a radius of 3.00 cm, and carries a cur...
A: Given,Total Number of turns, N=560Length of the solenoid, l=12.0 cml=0.12mRadius of the solenoid, R=...
Q: Find the protons, electrons and neutrons for the following: protons %3D protons electrons %3D electr...
A: Find thfor the following. given: F, F- , Na, Na+1, O2-, Mg2+, Al3+, P3-
Q: 3. A 1.0 kg block at rest on a horizontal frictionless sur- face is connected to an unstretched spri...
A:
Q: 1. Compare and contrast between Classical (Newtonian) mechanics and Quantum theory.
A: As per BARTLEBY GUIDELINES I have to answer only one question so I answered Q1 and repost remaining ...
Q: Consider a star at a distance of 100 light years from the Earth and is moving relative to the Earth ...
A: Given information: The distance of the star form earth (r) = 100 light years = 100×(9.461×1012) km =...
Q: The spring-mounted 0.8 kg collar A oscillates along the horizontal rod, which is rotating at the con...
A: Given: The rate of rotation is 6 rads. The spring constant is 5 Nm. The coefficient of kinetic frict...
Q: State the bravais lattice of the following crystal structures: caesium chloride, graphene, diamond, ...
A: bravais lattice of caesium chloride, is SIMPLE CUBIC. bravais lattice of diamond is FACE CENTERED C...
Q: The diagram shows the symbol for a wire carrying a current I. What does this current represent? the ...
A:
Q: The position vector of a particle is r= [(t³ + 2t² + 2)i + (t² – 1)j] m at time t s. The velocity of...
A: Velocity is nothing but the rate of change of displacement hence we have to just differentiate displ...
Q: An astronaut has brought along a pendulum oscillator that was calibrated to have a period of exactly...
A:
Q: find the polar moment of inertia of thin triangular plate a bounded by the line y = x, y=-x and y = ...
A: Given data: Density is given as δ=y+1 Boundary lines are, y=xy=-xy=1 Thus, the graph representing th...
Q: help
A: Given:- The diatomic molecule in its electronic state = 2600 cm -1 The first...
Q: The figure shows a circuit of four resistors that are connected to a larger circuit. The graph below...
A:
Q: 1. A current is driven through a rectangular loop of wire similar to Current into page on top edge t...
A: since, we have to solve only one question, please upload the second question later.
Q: A spaceship ferrying workers to Moon Base I takes a straight-line path from the earth to the moon, a...
A: Given distance travelled by spaceship is d=384000km=3.84x108m Magnitude of acceleration and decelera...
Q: We have seen that a coulomb is an enormous amount of charge; it is virtually impossible to place a c...
A: Yes, it is impossible to place a charge of 1C on an object. But in one 1C there is lot charge partic...
Q: help!
A: Current density J→=IA=IπR2Current through carved out portion:I'= IπR2πR22I'=I4Magnetic field at poin...
Q: What is the benefit of using the Earth’s magnetic field to migrate compared to the sun or stars?
A: Introduction: A magnetic field is a vector field that describes the magnetic influence on moving ele...
Q: More mirrors. Object Ostands on the central axis of a spherical or plane mirror. For this situation ...
A: Solution: As per the given data, a) The focal distance(f) is calculated as: f=r2f=-44 2f=-22...
Q: Please help
A: (a) Let R1 and R2 denote the resistances, R denotes the equivalent resistance, W1 and W2 denote the ...
Q: A basketball (m=0.625 kg) and a baseball (m=145g) are dropped from a height of 4.5 m. For simplicit...
A: Concept used: In perfectly elastic collision, both energy and momentum are conserved. Velocity of fl...
Q: Neutrinos are experimentally determined to have an extremely small mass. Huge numbers of neutrinos a...
A: Since according to the nature of neutrino, it is a charge-less particle and also massless. And it em...
Q: answer all parts
A: (A) Given: The voltage of the battery is 10 V. The capacitance of the capacitor is 1F. The dielectri...
Q: A 10 kilogram object suspended from the end of a vertically hanging spring stretches the spring 9.8 ...
A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If y...
Q: What is the effect of temperature increase on viscosity of liquids and gases? A. Increases for both ...
A: Viscosity of liquids decreases with increase in temperature where as Viscosity of gases increases wi...
Q: (Note:Please give me solution within 15 min.)
A: Given: The initial state of atom is ni=5. The final state of atom is nf=3. The formula to calculat...
Q: At this instant, what is the voltage across the inductor?
A: Solution: Given Values, Resistance(R)=20 Ω Inductor(L)=0.600 H emf(e)=80.0 V Energy(E)=0.400 J
Q: The two dots below represent to charged objects. The one on the left has 6 µC of charge. The one on ...
A: As each electric field line represent 1 μC Thus for 6 μC there are 6 lines and symmetrically distrib...
Q: A 65 kg person is standing 0.5 meters from the center of a merry-go-round that is spinning with angu...
A: Given data: The mass of the person is m=65 kg. The initial distance is d1=0.5 m. The initial angula...
Q: Statistical Physics. Microcanonical Ensemble.
A: Given: In the solid of Einstein, we may introduce a volume coordinate if we make the phenomenologica...
Q: Block B hangs on a cable connected block A through a pulley. The two blocks are in equilibrium. Bloc...
A: Given: Mass of block mB=2.5kg. Angle of incline is 35°.
Q: a) Show that the propagation constant (y), and the intrinsic impedance (7) of a uniform plane wave p...
A: As per condition we will solve first part . Relation between propagation constant and intrinsic impe...
Q: The figure below shows a 117-turn square coil rotating about a vertical axis at at o = 1,220 rev/min...
A:
Q: Can you do all parts please.
A: To find A we normalize the wavefunction, Therefore, ∫-∞∞ψx,02dx=1∫0L/32Ax2dx+∫L/3LA2L-x2dx=14A2L381+...
Q: A particle of m1=0.30 kg slides along the right axis on a frictionless floor with a speed of 2.0 m/s...
A: Let the initial velocity, initial energy, and initial momentum of ith particle be vi(i), Ei(i) and p...
Q: Choose the correct statement regarding the resistance of a wire. While maintaining a constant voltag...
A: we are checking all five cases one by one. regarding the resistance of the wire: First case:when v...
Q: In empty space there is (-∞, 0) semi-infinite linear uniform and constant charge density ρl = 3 [C /...
A: There is no x and y component of field at (0,0,4) as the charge distribution is along z axis, i.e. E...
Q: In the circuit below, all the R's and V's are known. Find the current through each resistor. R4 V1 R...
A: In loop (I) I(R1 +R2) +I2*R4 -V1 = 0 -------------(1) In loop (2) V2 +I(R1+R2) = 0 ...
Q: A compound pendulum oscillates through a small angle 0 about its equilibrium position such that 10a ...
A: The period of the pendulum is given by Where = angular frequency of oscillation
Q: Like most spacecraft returning from orbit, the Apollo command module entered the atmosphere at 7.8 k...
A: Given: The speed is given as 7.8 km/s The altitude is 40,000 feet and distance is 461 miles per hour
Q: 220.0 m. A car rounds the curve at a speed of 25.0 m/s. (a) What is the minimum coefficient of frict...
A: Newton's Second Law of Motion According to Newton's Second Law of motion, the rate of change of mome...
Q: How does the energy stored in a capacitor change when a dielectric is inserted if (a) the capacitor ...
A: Part (a) Express the relation for the charge as: Q=CV .......... 1 Here, C is the capacitance and V ...
Q: 2. Since a current-carrying wire is acted on by a magnetic force, it would seem possible to suspend ...
A: Assign the following convention to the directions, east≡ iwest≡ -inorth≡jsouth≡-jup=kdown≡-k Now the...
Q: Wile E. Coyote lifts an anvil with a mass of 6.50 kilograms up a cliff 10.2 meters tall. How much gr...
A: U=mgh m is the mass g is the gravitational acceleration h is the height
Q: I have the solution for the first sub question but the handwriting is bad. Could someone help me to ...
A: Using zeroth order approximation ψ is obtained by neglecting electron-electron repulsion. The Hamilt...
Q: State Longmuir's law.
A: Langmuir's law :
Q: OWRITE TRUE OR FALSE AND GIVE REASONS. •Accelerating objects MUST be changing their speed. • Acceler...
A: in order to answer this question, let us recall some concepts and definitions of physics Acceleratio...
Q: I need it ASAP SOLVE WITH EXPLANATION THANKS!
A: According to Ampere's law The magnetic field through any closed surface i.e. closed line integral of...
Q: 15. Your car is traveling behind a jeep. Both are moving at the same speed, so the velocity of the j...
A: It is mentioned that the velocity of the jeep relative to you is zero. Therefore, the horizontal com...
Step by step
Solved in 3 steps