1. What fraction of a cobalt-60-unit beam will be attenuated by 0.5 cm of lead? (u for cobalt-60 gamma rays in lead is 66.0 m-1)
Q: b- What is the minimum sampling frequency in hertz for the following signal x(t)-sin(4041t).
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Q: A battery with a 0.138 Q internal resistance supplies 14.2 W of total power with a 9.01 V terminal v...
A: Given, Internal resistance if battery is r = 0.138 ohms. Total power supplied by the battery is P =...
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Q: In Young's experiment the distance consecutive bright band produced on a screen placed at 1.5 m, fro...
A: Given Data : X1=6.5 mm =6.4 ×10-3 m ...
Q: A 0.7-F capacitor is connected in series with a 9-ohm resistor. If the connection is energized from ...
A: Given that,Capacitor : C = 0.7 (F)Resistor : R = 9 (Ohm)Voltage : V = 11 (V-DC)Time of supply : t = ...
Q: doees all the oblique componennts of force F are considered to be essential in resolving forces?
A: Answer: The oblique component of the Force makes an angle with respect to some reference direction, ...
Q: As shown in the figure, two very large horizontal plates are parallel to each other with a separatio...
A: Gauss's law states that the electric flux going through a closed surface is directly proportional to...
Q: Q1.A) the temperature of a silver bar rises by 10.0°C when it absorbs 1.23 kJ of energy by heat. The...
A: Solution:-Given thatRise in temperature (∆T)=10°CHeat engery absorbed (Q)=1.23 kJ=1230 JMass of the ...
Q: What is the mass number of an alpha particle?
A: We know that, Mass number is the total number of nucleons. Mass number is the sum of number of pr...
Q: A rocket accelerates at a rate of 20m/s during launch. How long does it take the rocket to reach a v...
A: Given that,Initial velocity : u = 0 (m/sec)Final velocity : v = 400 (m/sec)Acceleration : a = 20 (m/...
Q: Consider two hydrogen atoms interacting with each other. Ignoring The spin-dependent interactions bo...
A: For a 2e- system, we write, Ho=-h22μ∇12+∇22-Ze21r1+1r2
Q: The spacing between vibrational levels in NaCl is 0.04eV. Calculate the number of rotational lines b...
A: In rotational spectra, the energy of a rotational level is given by ER=h28π2IJ(J+1) where I is the m...
Q: The crank link AB of the 4-bar mechanism, rotates with the constant angular speed of 6 rad/s counter...
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Q: ng ideal g -37. Derive the Legendre transformation of E in which S-T and N-→ µ. 38 Anply a Legend
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Q: (p + )Vx – b) = RT |3 V You are asked to proof the value of: 27 R Tc 1 RTc dan b - 8. 64 Pc Po
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Q: A woman is sitting in a chair attached to a massless rope that runs over a massless, frictionless pu...
A: As the question contains 5 sub-parts, we will answer the first 3 as per our policy. Kindly resubmit ...
Q: Use as an example the cases of the filled subshells of configuration ns? and np° to illustrate, by c...
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Q: A 0.7-F capacitor is connected in series with a 9-ohm resistor. If the connection is energized from ...
A: Given that,The capacitance of a capacitor : C = 0.7 (F)The resistor : R = 9 (Ohm)The initial charge ...
Q: A block of wood floats in fresh water with 0.665 of its volume V submerged and in oil with 0.874 V s...
A: Given: v1=0.665, v2=0.874 Let the density of wood and oil be ρw and ρo respectively. The density of...
Q: After a fall, a 70 kg rock climber finds himself dangling from the end of a rope that had been 14 m ...
A: Mass of rock climber m = 70 kg Length of the rope L = 14 m diameter of the rope d = 9.2 mm = 9.2 × 1...
Q: Write a short paragraph on the partials of a piano string; there are ways that it conforms with the ...
A: Concept of Piano: The piano strings vibrate in portions/sections and as a whole. The sections are re...
Q: A pulsed laser emits photons of wavelength 780nm and if the energy of the pulse is 2x10-10 J, find t...
A: wavelength of each photon is λ = 780 nm 1nm = 1 x 10-9 cm Energy of the pulse is E0 = 2 x 10-10 J....
Q: A K-type thermocouple is used to measure the temperature of a system that is known to be 850 degrees...
A: Solution. For any thermocouple, the voltage output and the temperature are given by the following r...
Q: You have a coaxial cable as shown below with linear charge density + 1 on the inner wire, and -1 on ...
A: Given,linear charge density in inner wire =+λlinear charge density in outer wire =-λBetween the radi...
Q: Two parallel metal plates separated by 20 cm are connected across a 12 V potential difference. An el...
A: Given that,The distance between two parallel plates : d = 20 (cm)Potential differene : V = 12(V)An e...
Q: A typical jetliner lands at a speed of 160 miles / hr and decelerates at a rate of 10 miles / hr / s...
A: Given: u=160miles/hr=0.044miles/s, a=-10miles/hr.s=-2.77×10-3m/s2, t=1s The distance traveled by t...
Q: glass container encloses a low pressure of 02 gas at 298 K. The molecular weight of 02 is 32.0 g/mol...
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Q: A suspicious-looking man runs as fast as he can along a moving sidewalk from one end to the other, t...
A: Given that,Time to go : t = 2.5 (sec)Time to come back : t' = 0 (sec)Here we need to find the ratio ...
Q: A parallel-plate capacitor has a separation distance d between the two plates and is connected to a ...
A: Solution: The rod which is inserted into the parallel plate of distance x is in series combination w...
Q: In the figure, a lead brick rests horizontally on cylinders A and B. The areas of the top faces of t...
A: Given Area of A AA = 2.1 AB Young modulus of A EA = 1.5 EB
Q: 5. What is the capacitance of a one side open coaxial cable (TV cable)? Given the inner core radius ...
A: Given: a=0.8mm, b=5mm, k=2, l=2.5m, ε0=8.854×10-12F/m The capacitance of the one side open coaxial c...
Q: How much work does a supermarket check out attendant do on a can of soup he pushes 0.790M horizontal...
A: In this case, the attendant in a supermarket pushes a can of soup horizontally some certain distance...
Q: 3. What is your observation of the change in each parameter? Circle the correct answer. a. Resistanc...
A: Resistance is a measure of the opposition to current flow in an electrical circuit. resistance is me...
Q: Two point charges, +Q and -Q are arranged on the x-axis at the coordinates (-a, 0) and (a, 0) as sho...
A: The potential at a point due to a system of charges is given by V=∑i=1NkQiri where k=14πε0Qi=charge...
Q: A pulsed laser emits photons of wavelength 780nm and if the energy of the pulse is 2x10-10 J, find t...
A: Solution:-Given thatWavelength of photon (λ)=780 nm=780×10-9 mEnergy of the pulse (E)=2×10-10 JPlanc...
Q: Obtain the expression for energy density of radiation in terms o
A: Consider an assembly of atoms that is in thermal equilibrium with radiation of frequency ν and energ...
Q: cannonball is fired with an initial velocity of 72 m/s , at an angle of 38 ° from the horizontal. . ...
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Q: 1. Use parallelogram method to solve the following: а. 2A + В b. А-В y A = 5 kN 20° 75°> B= 5 kN
A: Refer to the figure below :
Q: (See figure attached) A conducted rod spans a gap of length L = 0.075 m and acts as the fourth s...
A: As you have asked a question with multiple subparts, we will answer 1st 3 subparts for you. to get t...
Q: Find the energy levels for an electron inside an infinite well of length L. What is the maximum wave...
A: The nth energy levels of the electrons inside the infinite potential well is:- En=n2π2ℏ2 2meL2 ...
Q: What is the direction of the electric field? O from point B to point A O from point A to point B O p...
A: The direction of electric field. Given options, (a) From point B to point A (b) From point A to poin...
Q: The New York Yankees are interested in knowing if the player’s name on Jersey can be read by the aud...
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Q: 5At t = 0 s, a particle is at position x = -2 m. Its velocity for t > 0 is shown in the graph below....
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Q: on a with respect to the bottom. Calculate the Ex. 11: Tangential force of 10° N is applied surface ...
A: To find-Modulus of rigidity (η)=?GIven-Force applied (F)=105NL=10 cm=0.1 mSurface area (A)=3×10-6m2S...
Q: Ex. 66: Calculate the velocity of sound in a gas of wavelength in which two waves 2 m and 2.05 m pro...
A: To find- Velocity of sound in gas=? Given- λ1=2 mλ2=2.05 mn1-n2=4 beats/sec
Q: A 120 V ac voltage source is connected across a 2.0 micro-F capacitor. What will be the current to t...
A: Given that,AC Voltage : V = 120 (V)Frequency of voltage source : f = 60 (Hz)Voltage of capacitor : C...
Q: Briefly explain the working of a semiconductor laser.
A: PRINCIPLE: A semiconductor has a small energy gap (1eV) between ts valence band having energy states...
Q: Astronomical observations of our milky way galaxy indicate that it has a mass of about 8x1011 solar ...
A: 1 solar mass = 1.989e+30 kg 1 Light year = 9.461e+15 m Given, mass of milky way is M = 8x1011 solar ...
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