Answered: The red-shift of a galaxy observed by…

The red-shift of a galaxy observed by us corresponds to a speed of 50000 km/s. How far is the galaxy from us approximately?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter11: Particle Physics And Cosmology

Section: Chapter Questions

Problem 62P: The distance of a galaxy from our solar system is 10 Mpc. (a) What is the recessional velocity of...

See similar textbooks

Related questions

Q: Sauss's law tells us that the net electric flux is NOT zero because

A: ANS: b) There is a non-zero amount of net charge within the Gaussian surface.

Q: The speed of the

A: Given; From given adjacent figure, the monkey has a mass twice that of the block which has a plane…

Q: Concept Simulation 2.5 provides a review of the concepts that play a role in this problem. A…

A: Acceleration is defined as the rate of change of velocity. From the graph, we will find out required…

Q: A rickshaw puller pulls the rickshaw by applying a force of 120 N. If the rickaw moves with constant…

Q: The color orange has a wavelength of 590 nm. What is the energy of an orange photon? (h = 6.626 x…

Q: particle executes simple harmonic motion, such that at a given time, it is at x=-(1/9)A moving…

A: GivenMass of particle, m=134 g=0.134 kgx=-19AAnd t=0.24 sv=+17vmax

Q: Calculate the capacitance of two plates of area 4cm² seperate by 1mm

Q: A skateboarder wishes to build a jump ramp that is inclined at a 19 angle and that has a maximum…

Q: Table 7.9 For Refraction Index of Refraction Refraction Index of of Air, Standard Computed Angle of…

Q: Calculate the electric field intensity at point P which is 38 cm to the right of a charge of 6.0 х10…

Q: 45° B A m

A: This question is based on equilibrium.

Q: 5.106 A u component of velocity is given by u = is a constant. What is a possible v component? What…

Q: A car travels 40km due west and 50km in a direction 30° north of east. X component of the resultant…

Q: If a car travelling at 34 m/s is subjected to a steady deceleration of 4 m/s?, how long will it take…

Q: In newton's first law problems how is the positive value determined? A) It is determined by the…

A: There is no net force acting on an object (if all the external forces cancel each other out). Then…

Q: vector A are: Ax = 5.1 m and Ay= -5 m and the components of B are: Bx= -2.6 m and Ay = -4.3 m. What…

A: This question is based on resultant of vectors.

Q: Refer to the given circuit below. Determine the equivalent resistance across terminals a and b if R1…

Q: A 10.50-g bullet is fired into a stationary block of wood having mass m = 4.980 kg. The bullet…

A: We are going to apply conservation of momentum to solve the problem. Final answer is 289.4 in four…

Q: A ball kicked from ground level at an initial velocity of 68 m/s and an angle 0 with ground reaches…

Q: "If the electric field is zero everywhere inside a region of space, the potential must also be zero…

A: We know the relation between electric field and potential is given as. E=-∆V/∆r Here E is electric…

Q: 5.105 The velocity components of a flow field are given by y -X u = v = 3/2 (x² + y³)° 2, 3/2 (x*…

A: Force produces acceleration and hence the changes in attributes of motion. Continuity of flow field…

Q: Two objects which is the B1 (T = 40 C) and B2 (T = 18 C), has experienced entropy changes of 6.4 x…

Q: The gravitational force exerted on a solid object is 5.45 N as measured when the object is suspended…

Q: 6 x 10 ure of latr Oculo

Q: eated to a ter ange in the in ande

Q: Find the constant force F required to give the 20 kg blockB an upward acceleration of D.6m/s² what…

A: If T is the tension then Net force = Pull force - Tension - Frictional force, Acceleration in total…

Q: Iwo metal spheres in contact are suspended by cotton threads. Q is grounded. A positively charged…

Q: 16. An engine rated at 5.0 x 104 watts exerts a constant force of 2.5 x 103 newtons on a vehicle.…

A: Power=5.0 x 104 watts Force=2.5 x 103 newtons

Q: An object of mass 6 kg is at a certain height above the ground. If the potential energy of the the…

Q: Guide Questions: Do the following tasks and solve the problems. Use separate sheets of paper for…

A: As per our guidelines, we are supposed to answer only first three subparts in case of multiple…

Q: Which among the following is not a base unit? O a. Newton O b. Ampere O c. Kelvin O d. Candela

Q: jet of water squirts out horizontally from a hole near the bottom of the tank shown in the figure.…

A: jet of water squirts out horizontally from a hole near the bottom of the tank shown in the figure.…

Q: ature of Physics as experimental science... enumerate the order on how physics laws are created...…

A: By nature, laws of Physics are stated facts which have been deduced and derived based on empirical…

Q: 5.95 PQ What is cavitation? Why does the tendency for cavi- tation in a liquid increase with…

A: Given: What is cavitation? Why does the tendency for cavi tation in a liquid increase with increased…

Q: A particle travels so that its acceleration is given by a = 2e-ti + 5 cos t j 3 sin t k If the…

Q: Q 6) Consider that the radius of the blood vessel has decreased to (80%) of its original value due…

A: By Poiseuille's law, ΔP = 8QηL / πr4 Where, Q=volume flow L = Pipe or vessel length ΔP = Pressure…

Q: A ball kicked from ground level at an initial velocity of 68 m/s and an angle 0 with ground reaches…

Q: A 7.2-mH inductor is connected to a current. What is the magnitude of the voltage in the inductor at…

A: The inductance of the inductor, L =7.2 mH Current through the inductance circuit, I(t) = 5+7t-2t2…

Q: A rickshaw puller pulls the rickshaw by applying a force of 120 N. If the rickaw moves with constant…

A: Given data : Force = F Velocity = V…

Q: c). Calculate the current I that will flow through the circuit shown below if the entire arrangement…

Q: 10. The energy levels for a Bohr atom are shown below. -4.90 ev -7.65 eV n= 5 n= 4 Toggle bookmark…

A: From the given energy level we will find the energy in the transition and then we will solve for the…

Q: [PROBLEM SOLVING] Show your complete detailed solution. The acceleration of an object as a function…

Q: coherent light is used to illuminate two slits separated by a distance d = 2.1x 0-4 m, see Figure…

A: Distance(d)=2.1×10^-4m Distance (L)=3m Y2=16.6mm We have to find the wavelength

Q: 3) Is there any kind of material that when inserted between parallel plate capacitors would reduce…

Q: ) A long straight wire suspended in the air carries a conventional current of 9.43 A in the -x…

A: Using right hand thumb rule direction is out of the plane of paper

Q: acceleration of m1?

A: Given; Triangular wedge shown in the figure,It is pulled towards left with an acceleration of 1.5…

Q: traffic light of weight w is supported by two cables as shown in the figure. The value of T2 is:

Q: A particle with a charge of 5.5 x 10° C charge is fixed at the origin. A particle with a charge of…

Q: A supersonic airplane with a wingspan of 10 m is flying over the north magnetic pole (with a…

A: Given : L = 10 m B = 0.5 G = 0.5 × 10-4 T v = 3vsound = (3)(340) = 1020 m/s θ = 90° (because…

Concept explainers

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.

Question

100%

The red-shift of a galaxy observed by us corresponds to a speed of 50000 km/s. How far is the galaxy from us approximately?

A. 700 Mpc

B. 70 Mpc

C. 7 Mpc

D. 7 Gpc

Is the answer A? Thank you!

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

1. Based on the problem below, if a crew member on the spaceship measures itslength to be 400 m, what is the length measured by an observer on earth? a. 34.2 mb. 44.1 mc. 56.4 md. 78.2 m 2. Based on the problem below, how far does the ship travel in relation to theearth during each pulse? a. 1.35 kmb. 4.21 kmc. 83.8 kmd. 94.5 km
A. Instruction: Solve the following problem. 1. A 480 nm light from a distant galaxy is redshifted to 550 nm. How fasf is it receding from Earth? of.mese aee01 o1 emit beagele edt eeob morhy oT noiteeup noitslib emit bns vliensilumi feeeoong ert nw gnivom 1evieedo nsno 29ng eri of evitelen pnivvorn nevneedo ns 1ol ad femit egoiq eusem nevieedo roinW 19vieado nsrions! ni 1eiBep mece loejdo ns aeob moriw oT noileeup dipnel io.goitbenino 29tuesem evisedo roinW Stoejdo erl of evitsle pnivom 1evieedo ne 1o todo srit ridiw enivom 2. How fast must a source of light receding from Earth be for a yellow light of wavelength 575 nm to appear red with = 675 nm? nooled bebnsqxe ne soslq uoY inemiteqxs iriguont s ebieno .noitesup vpienie oiteivitsis coy bns aeisoe erli no eysie nollsd enT .pnimom yhss srit ni eblatuo 2elsoa pniripisw no tis to veb erll as 9enerlo ncoled ert to easm oni esod.e2sm eti ni espnerlo eusam ol elds ens
Problem 3. Consider a flat, single component universe. 1. For a light source at redshift z that is observed at time to, show that z changes at a rate dz dto = = Ho(1 + 2) — Ho(1+2)³(¹+w)/2 (2.1) 2. For what values of w does the observed redshift increase with time? 3. Assuming the single component is matter and Ho = 68 km/s/Mpc, you observe a galaxy at z = 1. Using Equation 2.1, determine how long you will have to keep observing the galaxy in order to see its redshift change by 1 part in 106.
Please explain part B. I know that 1.139E-4 and 1.139E-10 are incorrect answers for part B. I know that the answer for part A is correct.
What is the Hubble Time in Gyr, given the following values of Ho? a. Ho= 50km/s/Mpc b. Ho= 75km/s/Mpc C. Ho= 100km/s/Mpc
Not sure what I'm doing wrong. I know that Fc= (m)(v^2/r) with: m= 0.0011kg r=0.84/2 Fc=3.9N but when I plug all that into the equation, I'm being told it's wrong. What am I missing?
Based on what you have learned about galaxy formation from a protogalactic cloud (and similarly star formation from a protostellar cloud), the fact that dark matter in a galaxy is distributed over a much larger volume than luminous matter can be explained by I. Dark matter does not emit EM radiations. II. The pressure of an ideal gas decreases when temperature drops. III. The temperature of an ideal gas decreases when its thermal energy decreases. A. I only B. I and III only C. II and III only D. I, II and III Is the answer C? Thank you!
The hydrogen Balmer line Hγ has a wavelength of 434.0 nm in the laboratory. If a quasar has a redshift of z = 2, what would you measure the wavelength of this spectrum line to be? a. 868.0 nm b. 434.0 nm c. 343.0 nm d. 1302 nm e. 217.0 nm
The following quotation is taken from the article “Quantum Black Holes”, by Bernard J. Carr and Steven B. Giddings, in the May 2005 issue of Scientific American. "The total time for a black hole to evaporate away is proportional to the cube of its initial mass. For a solar-mass hole, the lifetime is an unobservably long 1064 years." a. Recall that the solar mass is 2 × 10³0 kilograms. Write a formula for the lifetime, L, of a black hole as a function of its mass, m. Start by finding the value of the constant k, then write your function using the letter k (rather than its value in scientific notation). For example, for a direct variation you would write “L(m) = km”. k = a × 10¹ where a = L(m) = b. The present age mass = c × 10ª kg, where c = A and b = = of the universe is about 10¹0 years. What would be the mass of a black hole as old as the universe? ID and d = J
(a) What is the approximate speed relative to us of a galaxy near the edge of the known universe, some 10 Gly away? (b) What traction of the speed of light is this? Note that we have observed galaxies moving away from us at greater than 0.9c.
(a) Calculate the approximate age of the universe from the average value of the Hubble constant, H0=20km/s . Mly. To do this, calculate the time it would take to travel 0.307 Mpc at a constant expansion rate of 20 km/s. (b) If somehow acceleration occurs, would the actual age of the universe be greater or less than that found here? Explain.
(a) What Hubble constant corresponds to an approximate age of the universe of 1010 y? To get an approximate value, assume the expansion rate is constant and calculate the speed at which two galaxies must move apart to be separated by 1 Mly (present average galactic separation) in a time of 1010 y. (b) Similarly, what Hubble constant corresponds to a universe approximately 21010years old?