Imagine that you are observing a star and you find the wavelength of peak emission for the star to be 500 nm. What would the wavelength of peak emission be for a new star that has a surface temperature that is a third of the original star?

Q: An Atwood's machine  consists of two masses: one of mass 1.23 kg and the other of mass 4.96 kg.When…

A: Two masses given are M1 = 1.23 kg M2 = 4.96 kg When the masses are released from rest we have to…

Q: May I get a clearer step by step for the solution please? It was hard to read.

A: Given:

Q: 27. QICS Four charged particles are at the corners of a square of side a as shown in Figure P19.27.…

A: Charges q1 = q                q2  = 2q                q3= 4q

Q: An object with mass m1 = 6.00 kg, rests on a frictionless horizontal table and is connected to a…

A: m1 = 6.00 kgm2 = 12.0 kg

Q: Wire C and wire D are made from different materials and have length Lc=Lp=2.4 m. The resistivity and…

A: The resistance of a wire of length , cross-sectional area , and resistivity is given by,GivenWire C…

Q: During spring semester at MIT, residents of the parallel buildings of the East Campus dorms battle…

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Q: A space vehicle is traveling at 3250 km/h relative to Earth when the exhausted rocket motor is…

A: Initial velocity of vehicle is Relative speed between the motor and the module is Mass of motor is…

Q: A steady beam of alpha particles (q=+2e, mass m = 6.68 x 10-27 kg) traveling with constant kinetic…

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Q: A 0.500 kg sphere moving with a velocity given by (2.001 - 3.40 + 1.00k) m/s strikes another sphere…

A: a)Apply the momentum conservation equation and substitute the corresponding values to calculate the…

Q: 5. M An electron moving parallel to the x axis has an initial speed of 3.70 x 106 m/s at the origin.…

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Q: 1. Two cars collide at an intersection. Car A has a mass of 1200 kg and car B has a mass of 1500 kg.…

A: Given that ,

Q: A 73-kg snow skier is being pulled up a 19° slope by a steel (Young's modulus 2.0 x 10¹1 N/m²)…

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Q: 2a) Using Gauss's Law, (§ Ē·dà = Qenc/to) show that the electric field outside an infinitely long…

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Q: A 52.0 kg woman steps off of a diving platform with a height of 10.0 m and drops straight down into…

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Q: The figure below shows the path of a light beam through several slabs with different indices of…

A: In medium 1:The angle of incidence on the bottom surface is .refractive index is In medium 2:The…

Q: Bob is pulling a 30 kg filing cabinet with a force of 200 N, but the filing cabinet refuses to move.…

A: Mass of filing cabinet m = 30 kgForce F = 200 NCoefficient of static friction μ = 0.80Magnitude of…

Q: 10. Three polarizing disks have planes that are parallel and centered on a common axis. The…

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Q: A ball is fired horizontally with a speed of 9m/s from the top of the table which is 2.9m high. How…

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Q: A 1.2 x 10-3-kg house spider is hanging vertically by a thread that has a Young's modulus of 4.4 x…

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Q: The index of refraction for violet light in silica flint glass is 1.66 and that for red light is…

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Q: 5.14* A classic 35-mm film camera has a single thin lens having a 50.0-mm focal length. A woman 1.7…

A: The relation between the focal length, image distance and object distance for thin lens is given by-…

Q: According to Newton’s first law, if no force acts on an object, it will just continue moving.…

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Q: An m = 20.0 g object is held against the free end of a spring of constant k = 25.0 N/m that is…

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Q: For a Wheatstone bridge with R1 = 432.1 Ω, R2 = 55.2 kΩ, and Rk = 6654.543 Ω, what is Rx ?   For a…

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Q: For the position-vs-time graphs shown below, qualitatively draw the corresponding velocity-vs- time…

A: -

Q: A loop with a resistance of 4.02 is pushed to the left at a constant speed of 2.0 m/s by a 24 N…

A: The direction of the induced current in the loop can be determined by Lenz's law, which states that…

Q: For example, for the equation = TV, if G = y and V = x, what represents m? If we solve for G, then G…

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Q: A 1500 kg car skids to a halt on a wet road where μ = 0.16. How fast was the car traveling if it…

A: Mass of vehicle is Coefficient of kinetic friction is Distance is Note:Gravitational acceleration is…

Q: 4. A 20.0-mW (milli-Watts) laser puts out a narrow cylindrical beam 1.60 mm in diameter. What is the…

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Q: The rotational velocity of a spinning disk decreases from 6 rev/s to 3 rev/s in a time of 12 s. What…

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Q: . What is the power output of a 60.0 kg student running at a constant velocity up a flight of stairs…

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Q: EXTRA CREDIT A highway curve of radius 60m is banked at a 12° angle. A out assistant from friction?

A: Radius of highway curve,          Angle of banking         We need to find speed of the car without…

Q: 1.0 m length of metal wire is connected to a 1.5 V battery, & current of 8.0mA. Resistivity of metal…

A: length = l = 1 mvoltage = V = 1.5 VCurrent = i = 8 x 10-3 Amp

Q: A ball is thrown vertically upward from the ground with a speed of 27.3 m/s. How long does it take…

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Q: 5. The Seattle Great Wheel has a radius of 57 meters. a) If the wheel has a period of rotation of 45…

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Q: A 1.2 x 10-³-kg house spider is hanging vertically by a thread that has a Young's modulus of 4.4 x…

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Q: 51. Find the equivalent capacitance between points a and b in the combination of capacitors shown in…

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Q: 2. A box of mass "m" is released on an incline of angle "θ" and accelerates down the incline. The…

A: A box of mass "m" is released on an incline of angle "θ" and accelerates down the incline. The…

Q: A 350 kg roller coaster starts from rest at point A and slides down the frictionless loop-the-loop…

A: Now

Q: 15.0 V 500 N 900 Ω www 200 Ω 1500 N www ) (a) Calculate the equivalent resistance of the circuit. 5)…

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Q: A horizontal force of magnitude 49.0 N pushes a block of mass 4.37 kg across a floor where the…

A: The work done by the applied force is given by the formula:Here, is the applied force, is the…

Q: D2L. I do not accept any assignments via email after the due date. Problem: Calculate the…

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Q: Determine the maximum speed an alpha particle consisting of (mass of two protons and two neutrons =…

A: Since the alpha particle starts from rest, the initial speed of the alpha particle will be…

Q: A 440g beanbag slides up a cornhole board (if you’ve never played cornhole before, the board is…

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Q: A point charge Q₁ = 18 nC is placed at a distance of 9.0 m from the origin along the positive…

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Q: Two very small spheres have charges of +5.93µC and -1µC are placed 24.1cm away from each other. The…

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Q: 5. Two masses slide along a friction-free horizontal bar. Slider A has a mass of 2 kg and slides to…

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Q: You are on vacation in San Francisco and decide to take a cable car to see the city. A 5800-kg cable…

A: Mass (m) = 5800 kgLength of cable (L) = 460 mAngle ( θ) = 13°

Q: Zach, whose mass is 85 kg, is in an elevator descending at 12 m/s. The elevator takes 3.2 s to brake…

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Q: 3. A man of mass 70 kg and a boy of mass 33 kg are standing together on a smooth ice surface. If…

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Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.