PHYS 1403 Lab 1: Scientific Calculations
Enter your answers to each question in the data tables and yellow highlighted areas
below. When completed, please save the file and attach it to the Lab 1 Assignment in
What do the red stars in the Galactic halo tell us about the history of the Milky Way?
Red Stars in the Galactic Halo
The Milky Way has three parts to its structure which are a central bulge, a disk, and a halo. The
halo is also divided into an
Do you think planet-size objects orbiting a pulsar should be called planets? Why or why not?
Planets or Not Planets
I felt an accurate definition of planet was needed in order to discuss whether or not a
planet-sized object orbiting pulsars or d
How can astronomers estimate the age of an isolated star?
The Age of an Isolated Star
One way astronomers can estimate the age of an isolated star is by using its spin or
rotation rate. This is apparently a rather new technique used in more rece
Why is it odd that the binary system Algol consists of a low-mass red giant orbiting a high-mass
main-sequence star? How did Algol come to be in this configuration?
Algol, Week 8 Discussion
The odd thing about Algols binary system is that the la
In the formation of a star cluster with a wide range of stellar masses, is it possible for some stars
to die out before others have finished forming? Do you think this will have any effect on the
The Death of Stars in a Clus
Age of a Star Week Six Discussion
In general, is it possible to determine the age of an individual star simply by noting its position on an H-R
No, it is not possible to determine the age of an individual star by noting its
Blackbody curves for Stars C, D, E, and F are shown in the three graphs below. Use
your knowledge of blackbody radiation curves (spectra) to answer the following
questions. For each answer, fully explain your reasoning. In your reply posts this
Discussion Board Question
What observational evidence did Galileo have for the heliocentric model? Explain how the evidence
supports the heliocentric model and/or refutes the geocentric model.
First of all, Galileo observed through his homemade
0 out of 1 points
Newton's Force Law relates (mark all that apply)
a) the acceleration an object experiences with its
b) the accelaration an object experiences with the
force applied to it.
d) the acceleration an object
You throw a stone vertically upward with an initial speed of 5.8 m/s from a third-story office window.
a) If the window is 12 m above the ground, find the time the stone is in flight.
Express your answer using two significant figures.
b) Find the speed of