How can a black hole emit X-rays?
Q: Problem 1: For the following signal, find the fundamental period To and the fundamental frequency…
A: Fundamental period of function.
Q: Why can't a white dwarf have a mass greater than 1.4 solar masses?
A: When nuclear fusion inside a star stops the hydrostatic equilibrium is broken and the star will…
Q: 2. The cylinder drawn below represents a portion of an unmyelinated axon. Current flowing through…
A: Given: The resistance of the axoplasm is Ra The resistance of the cell membrane is Rm
Q: 4. Four hundred grams of water at 20°C is placed inside a 100 grams glass container. Twenty grams of…
A: Given, The mass of water is mw=400gm Temperature of water is Tw=200C The mass of glass container is…
Q: T Einstein, z = 100 cm ¹ Einstein, : = 500 cm 1 1K 1.4021 3.8991 10 K 50 K 100 K 500 K 2.434E-4 1000…
A: Given thatCv=3NkτkT2eτkT(eτkT-1)2 T (K) Cv (KJ/mol) when τ = 100cm-1 Cv (KJ/mol) when τ =…
Q: Consider a system consisting of a single impurity atom/ion in a semiconductor. Suppose that the…
A: The Given system consisting of a single impurity atom/ion in a semiconductor. To discuss the results…
Q: The current flowing through an external resistance of 202 is 0.5 A when it is connected to the…
A: Concept: Here, In this Question to determine the e.m.f of the cell we have to use Kirchhoff's law.…
Q: * coil of unknown resistance is placed in left gap of melee bridge and a reseplance R is placed in…
A: To find-Resistance of coil (X)=?Provided that-Resistance in right gap (R)=R ohmNull point from left…
Q: Determine the coordinates of the centroid of the shaded area. 70 45 25 -50 155. Di. 60 50,
A: Concept: The Figure of all the parts of the shaded region is given below, Part 1 The area of the…
Q: Why is there no transmitted ray beyond a definite angle? Describe the behavior of the ray at this…
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Q: A stone is dropped from the top of a 20ft tree. Another stone was thrown upward with a velocity of…
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Q: The Drake equation is a tool used by scientists engaged in the Search for Extraterrestrial…
A: The Drake equation is N=R×fS×nP×fL×fi×fT×L -…
Q: Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lb/in2 and…
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Q: Question 7/ Pv= A vector field as E = C cos(wt + kx) ŷ V/m is given in a source-free dielectric…
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Q: The Electromagnetic Pump. Magnetic forces acting on conducting fluids provide a convenient means of…
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Q: We have proved that the mutual inductance of coil 1 due to coil 2 are equal to the mutual inductance…
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Q: If the inner accretion disk around a black hole has a temperature of 1,000,000 K, at what wavelength…
A: Black holes are regions of large gravitational force in spacetime. The gravitational force is so…
Q: Determine the volume V and total surface area A of the solid generated by revolving the area shown…
A: Solution:-Given that
Q: What is the greatest average speed of blood flow at 37° C in an artery of radius 2.00 mm if the flow…
A: Reynold number is used to determine whether the flow is laminar or turbulent. The Reynold number is…
Q: An astronaut traveling at a speed of 0.75c requires 25 years, as measured on Earth, to make a round…
A:
Q: A center-fed dipole is excited by a current Io =9.3 A. If the dipole is 1.1 cm in length, determine…
A: Maximum power density of electromagnetic wave is Smax = PowerSurface area =PSbut P =…
Q: A child on a bike (51kg total) skids to a stop from a speed of 5.790ms, leaving a trail that is…
A: Answer : We know if any person starts his journey with an initial speed u and after travelling a…
Q: L3
A: Given that,Mass of automobile : m1 = 2000 (kg)Speed : v1 = 100 (km/h) = 27.8 (m/sec)Mass of runner :…
Q: A box slides on a frictionless surface with a total energy of 50 J. It hits a spring and compresses…
A: Given that :The total energy with which box slides on a frictionless surface, ET= 50 JCompression in…
Q: (Use relative motion analysis): The planetary gear system is used in car transmissions. There is sun…
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Q: Please solve quickly
A: 1. The virus of mass m is projected at some angle from the horizontal, therefore it will have two…
Q: A 1.5-mm-tall barrel is filled with water (with a weight density of 9800 N/m3N/m3). Find the water…
A: Given that: Pressure density of water = 9800 N/m3.When the barrel is filled, Then, The depth of…
Q: A 50.0-g ball of copper has a net charge of 2.00 μ C. What fraction of the copper's electrons has…
A: Given that-Mass of the copper ball, m= 50.0 gThe net charge, Q= 2.00μCNet charge, Q=ne ... eqtn…
Q: (Use relative motion analysis): A single pulley having both an inner and outer rim is pin connected…
A: Concept: To determine the Angular acceleration of the pulley and the acceleration of the Block, we…
Q: The Ministry of Health is planning to build a mobile application software to screen passengers…
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Q: Derive the Schrödinger equation and the acceptable wave functions for the “particle in a…
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Q: 9. A missile is rising at a constant rate of 100 meters per second. An observer is 600 meters away…
A: velocity of the missile, u=100 m/s Distance of the observer from the launching pad, R=600 m The…
Q: A star has a life expectancy of 5 billion years. What would be its mass?
A: A star will live as long as there are enough fusion reactions inside its core. Once the fusion stops…
Q: A conducting rail shaped like you see in the picture has a resistance R = 3.40 Q between points (1)…
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Q: Water is moving at a velocity of 2.00 m/s through a hose with an internal diameter of 1.60 cm. (a)…
A: Given that-Internal diameter of hose, d=1.60 cm=0.016 mArea of cross-section of hose, AVolume flow…
Q: The radius of the sun is 0.7 million km. What percentage of the radius is taken up by the…
A: The chromosphere is the lower region of the Sun's atmosphere. It is the region above the…
Q: Suppose a speck of dust in an electrostatic precipitator has 1.0000 x 10¹2 protons in it and has a…
A: Solution:-Given thatnumber of protons (np)=1012Net charge (q)=-5 nC=-5×10-9 C
Q: A toroid has 250 trims of wire and carries a current of 20 A. Its inner and outer radii are 8.0 and…
A: Given that-Number of turns in a wire are 250Current in the toroid is 20AThe outer and inner radii of…
Q: A magnet weights 60 gm and its magnetic moment is 3 x 10³ Am². It the density of material of magnèt…
A: To find-Intensity of Magnetisation Given-Mass (m)=60 gm=60×10-3 kgDensity (ρ)=1.20×103 kg/m3Magnetic…
Q: Determine the shuttle's angular velocity 3 s later. Enter the x, y, and z components of the angular…
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Q: In a hurry to catch a cab, you rush through a frictionless swinging door and onto the sidewalk. The…
A: Here the Torque is acting on the door is to be evaluated, Force exerted on the door, F=60 N width…
Q: Why would radio astronomers build identical radio telescopes in many different places around the…
A: Concept: Radio telescopes are used by astronomers to investigate areas of space. When searching…
Q: A column has a cross section L(in) x W(in). The height of the column is H (ft). The material used…
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Q: Why did astronomers conclude that pulsars actually could not be pulsating stars?
A: Pulsars are defined as highly magnetized rotating neutron stars. They are capable of releasing beams…
Q: Ex 16.7.2 Find the center of mass of an object that occupies the surface z = xy, 0 ≤ x ≤ 1,0 ≤ y ≤ 1…
A: ρ = 1+x2+y2ρ = 1+12+12ρ = 3kg/m3Hence volume of objectV = xyzV =x2y2Hence volume of object V =12×12…
Q: light ray enters a rectangular block of plastic at an angle of 0₁ = 47.5° and emerges at an angle of…
A: We have given a plastics slab We have to find its refractive index And time taken by light to cover…
Q: A straight, vertical wire carries a current of 2.30 A downward in a region between the poles of a…
A: Given: The vertical wires carry a current in the downward region is I = 2.3 A The magnetic field…
Q: Destructive interference results in 1 Lower amplituch @ Lower frequency 3 Lower amplitude and…
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Q: When we use the notation |k,m,n> in angular momentum, for the case of spin we write, for example…
A: In quantum mechanics when we use a notation like |k,m,n> this kind of notation is called Bra-Ket…
Q: If a star has a parallax of 0.050 arc second, what is its distance in pc?
A: Parallax is one of the methods used to calculate the distance between Erath and distant stars.…
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