[Only if you understand the problem, please solve. I really need to get correct answer. Last guy answered it wrong.]
suppose a cepheid has a period of 2 days. estimate its luminosity from the figure above and then determine its distance if its measured brightness is 6.6 x 10^-12 watts/m^2
its distance is ____ x 10^7m
[Only if you understand the problem, please solve. I really need to get correct answer. Last...
The question has the answer already. i need to show the work on how the answer was gotten. 1 How far away is a type II Cepheid if it has a Period of 30 days and has a measured brightness of 10^-12 W/m 2? Answer: 1.656 x 10^20 m, 17,507 ly
Cosmic DistancesDISTANCE MODULUS- For this lab, we will focus on two techniques that can be used to measure the distance modulus of objects in deep space - supernovas and Cepheid variable stars. Before we begin, though, we must understand what "distance modulus" means.- Read through the background material on distance modulus.- Use the distance modulus page to complete the following table:ObjectApparent Magnitude (m)Absolute Magnitude (M)Distance Modulus (m-M)Distance (pc)Star A2.410Star B516Star C1025Star D8.50.5- Could one of the stars listed in the...
#2 please ! Ro le Astronomy 1F03 Problem Set 3 Thursday, Nov 10th, 2019 Write your answers on a separate sheet and show your work 1. The protesproton chain effectively c erta hyre en into hem according to 4 He. A Helium wus weighs 6.64518 x 10 IT kg and Hydrogen mucha proton) welches 1.67262 x 10 Workout the change in a when I kg of Hydrogen is converted completely into Helium 4. Convert the change in mass Per burning...
Only solve part (d) please. The formula derived in part (b) is 1 Dimensional Analysis 34 1.4. The luminosity of certain giant and supergiant stars varies in a periodic manner. It is hypothesized that the period p depends upon the star's average radius r, its lllass ข, alul i.he nravii.aiional cousiałí. G. (a) Newton's law of gravitation asserts that the attractive force between two bodies is proportional to the product of their masses divided by the square of the distance...
choose correct answer. no explanation needed QUESTION 10 How do astrophysicists account for neutrino emission from the Sun? Solar flares create neutrinos with very energetic magnetic fields. Convection releases neutrinos, which random walk through the radiation zone. Fission in the Sun's core creates neutrinos when protons turn into neutrons. The annihilation of positrons and electrons in the core produces neutrinos. Fusion in the Sun's core creates neutrinos when protons turn into neutrons, QUESTION 11 How does the interstellar medium impact...
Hi, can you solve the question for me step by step, I will rate up if the working is correct. I will post the answer together with the question. Answer: Question 5 A particle of mass m rests on a smooth horizontal track. It is connected by two springs to fixed points at A and B, which are a distance 2lo apart as shown in Figure Q5. The left-hand spring has natural length 2lo and stiffness k, whilst the right-hand...
( You do not have to solve number 2. I need number 3.) Problem 2(15 points). Refer to Figure 2 below. Given the height of the retaining wall, H is 18ft, the backfill is a saturated clay with, ф, 0°, c-500 lb/ft, Y-120 lb/ft. sat (a) Determine the Rankine active pressure distribution diagram behind the wall. Determine the depth of the tensile crack, zc (c) Estimate the Rankine active force per foot length of the wall before and after the occurrence...
Hi, can you solve the question for me step by step, I will rate up if the working is correct. I will post the answer together with the question. Answer: Question 5 This problem analyzes projectile motion. A netball player throws the ball from a point 4.5 metre horizontally from the net as shown in Figure Q5. The ball is thrown witha speed of 9 ms-1 at an angle of projection of α to the horizontal. Assume the acceleration due...
PLEASE READ THIS BEFORE YOU START SOLVING: I need an explanation for Part d only. The correct answer is 4.02 m, but I don't know how to get it, thanks! No need to do parts a, b and c!! THANK YOUUUUU Free Surface A curved surface as shown in the diagram above) defined as a quarter circle with radius of length r = 18 m is submerged in a liquid with the flat edge at a distance h - 10...
I understand this question is very long, but please only answer if you can complete all of it. When I posted it the first time I received a-d, which I am including below. I am not sure if they are correct. Thank you so much in advance!! Suppose a short-run production function is described as Q = 30L - 0.05L2 where L is the number of labors used each hour. Derive the equation for Marginal Product of labor (MPL): ...