(a) The Einstein A coefficient of the 3p² ³P₁/2 →3s² ³S₁/2 transition in sodium is 6.14 x 107 s¹. A gas of sodium atoms is excited to the 3p² 3P1/2 level at time t = 0. What fraction of the atoms are still in the upper level after 20 ns ?
Q: A Butterworth LPF has been designed such that its cutoff frequency is 2Hz. What will be the…
A: Given, Butterworth LPF with cutoff frequency of 2 Hz and finding the magnitude of filter at…
Q: A 6.5 m metal cube has a bulk modulus of 3.2 x 10 10 N/m ³ has a stress of 9.2 x 108 N/m². What is…
A: Simple question from the concept of Bulk Modulus. Please have a good look.
Q: cies wx # w,. express the angular momentum operator ( z in terms of creation and annihilation…
A: “As per the policy we are allowed to answer only 1 question at a time, I am providing the same.…
Q: A parallel plate capacitor is made from two metal plates of area 0.1 m2 and separated by an…
A: Area of each parallel plate in a parallel plate capacitor, A=0.1 m2 distance between the two…
Q: How large is the Schwarzschild radius of a black hole containing that of the Earth? a mass equal to
A: Schwarzschild radius is defined as the radius below which an object will collapse under its own…
Q: A man gets to maintain his body temperature. How much fat should he burn if he needs to do 350 000 J…
A: Amount of fat burned in doing 350,000 J of work. Given, WorkdoneW=350,000 J
Q: Consider the so-called "2-second rule" that is used as a recommendation when teaching safe driving…
A: Option (C) is correct.
Q: 3F. A 100-N block on a rough 30°-incline is acted upon by a force P as shown causing it to…
A: The dimension and direction of an object are defined by its magnitude. Scalar quantities are those…
Q: (a) Explain what is meant by term multi-directional composite laminate and using relevant sketches…
A: (a) Introduction: A composite laminate is an assembly of layers of fibre composite materials that…
Q: 4 Briefly explain how the strong change in electrical conductivity seen at the Verwey transition in…
A: INTRODUCTION: The Verwey Transition: The Verwey transition is a low-temperature segment transition…
Q: One end of a spring is attached to a solid wall while the other end just reaches to the edge of a…
A: Have a look
Q: Four objects are held in position by massless rigid rods as indicated in the figure above. The…
A: Given: The mass of the object and its coordinates with respect to the origin are given as masses…
Q: The unit of Stefan's constant is
A:
Q: In a photoelectric experiments, a graph of the light frequency f is plotted against the maximum…
A: Have a look
Q: A 100-lb force exerted against a 1000-lb block causes the block to slide with constant velocity. The…
A: Solution:-Given that
Q: In the fossil sample, β-decays of the 14C nuclei occur 5.0 decays per second. a) How many 14C nuclei…
A:
Q: Calculate the density of copper, whose building unit is (FCC) type, the length of the edge of the…
A: The length of the edge of the cube is 'a' = 3.16 Å The atomic weight of copper is M = 63.54
Q: Two converging lenses from question 5, are placed so they are now only 20 cm apart. The object is…
A:
Q: A 58^Ni ion of charge 1 proton and mass 9.62x10-26kg is accelerated trough a potential difference…
A:
Q: Determine the damping constant of the dashpot as shown in the figure. The dashpot consists of a…
A: Here we are going to calculate the damping constant.
Q: For an electron in a one-dimensional infinite potential well of width 1 ˚A, calculate (a) the…
A: Given Infinite potential well of width = 1 ˚A = 1×10-10 m Mass of the electron m =…
Q: Given : RE1:2 cm, Q = -6nC A Electric Field at pt. A due to disc a OR2
A: how the formula of the disk is derived. Given, Q=-6 nC=-6×10-9 CradiusR=1.2 cm=1.2×10-2 mdistance of…
Q: For the given figure, the weight of the 9-ft bar is 5 Ib. If F = 4.75, the reaction exerted by the…
A: Weight of the load, W=12 lb (acting at a distance of 3 ft from the fixed point) Weight of the bar,…
Q: Part A A circular loop in the plane of the paper lies in a 0.63 T magnetic field pointing into the…
A:
Q: Two particles of the mass m1 and m2 moving with initial velocities ul and u: respectively collides…
A: In elastic collision, the momentum and the kinetic energy remains conserved. The initial velocity…
Q: TIME TY Communications and ESARover will be sent via the ExoMars Trace Gas orbiber. Given that the…
A: The velocity of a moving object is defined as the distance covered by the object in a given time…
Q: Why are there few visual binaries with orbital periods of a few years or less?
A: A binary star system is formed when two stars are close enough to form an orbit around their…
Q: A 15A current flows though South through a 2m wire with a magnetic field of 10T directed into the…
A: Current through the wire I = 15 A Length of the wire L = 2 m Magnetic field B = 10 T
Q: 1. Find the tension in each cord in the figure below if the mass of the suspended object is 2.0 kg.…
A: Mass string system.
Q: P- 400 N 3. The 50-kg crate rests on a horizontal surface for which the coefficient of kinetic…
A: Mass of crate m = 50 kg Coefficient of kinetic friction μk = 0.3 Force applied to crate is P = 400 N…
Q: Two positive charges, Qi = +7.00 µC, Q2 = +5.00 µC are placed as shown in the drawing. The x-y…
A:
Q: 1) Write an expression in rectangular components for the vector that extends from (x1, y1,Z1) to…
A: Solution:-Given that(x1, y1, z1) to (x2, y2, z2)
Q: 30. A metal block which measures 25 cm x 10 cm x 0.05 m has a mass of 13.5 kg. Find its density in…
A: The measurement of the metal block is given as, 25 cm×10 cm×0.05 cm, The mass of the metal block is…
Q: Compare the angular resolving power of the following imaging instruments (details of the italicized…
A: The resolving power is the inverse of the distance or angular separation between two objects that…
Q: 3. Bifocal lenses are prescribed for a patient, the components having focal length of 40cm & -300cm.…
A: 3. Given, f1=40cmf2=-300cm Far points for patients eye, The position of the object, d0=∞…
Q: The depth 'd' at which the value of 1 acceleration due to gravity becomes n times the value at the…
A: To find-Depth (d) where (g) becomes 1ngGiven-Acceleration due to gravity=g
Q: Which of the following statements are true? True False The vector of the kinetic friction force…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: A/2 A d/2 A B
A: Given Data : Area of plate, A = 4mm2 = 4×10-6 m2 Plate separation, d = 5mm = 5×10-3 m To Find :…
Q: O switching frequency O device case temperature voltage drop in on state of the device O supplying…
A: Given: Average conduction losses in a semiconductor device are proportional to: Switching frequency…
Q: a Rover will be It is hoped that the ExoMars cover 100mper SOL. A Sol is a solar day on Mars and…
A: The velocity of an object is defined as the distance traveled divided by the time taken. If an…
Q: Calculate the osmotic pressure of a 5% urea solution at a temperature of 273 K. Note that the…
A:
Q: For answer number 2 can you write that with the radical shown?
A: Given,v=2mhgHmbx=mbv2k
Q: In determining the thermal conductivity of an insulating material, the temperatures were measured on…
A: We have been given that-Thickness of slab (x)=25 mmTemperature (T1)=318.4 KTemperature (T2)=303.2…
Q: 2. Determine the horizontal and vertical components of reaction at the pin A and the reaction on the…
A:
Q: Verify Green’s theorem in the plane for ∮(3x^2 - 8y^2 ) dx + (4y-6xy)dy, where C is the boundary of…
A: Given: ∮C3x2-8y2dx+4x-6xydy Where C is the boundary of the region defined by y= x, y =x2
Q: How to solve for c
A: Given data : V = 350 volts Distance between plates, d = 0.017 m To find : Magnitude of the…
Q: Determine the diffusion coefficient for p type Germanium at T =300 K if you know that the carrier…
A: Given P- type germanium T = 300 K To find- diffusion coefficient
Q: A person of skin temp of 37 C and body surface area 1.75m^2 : Find . Net total power if he receives…
A: Answeris below with proper explanation
Q: Make a table showing the theoretical effect of: (a) varying the slit width to the diffraction…
A:
Step by step
Solved in 2 steps with 2 images