StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...
Free

Calculating the Radial Velocity - Essay Example

Cite this document
Summary
The paper "Calculating the Radial Velocity" discusses that the level of salt in river water is small and since most rivers flow into oceans measuring the evaporative concentration of the salts reveals that the age of the earth is more than a million years…
Download full paper File format: .doc, available for editing
GRAB THE BEST PAPER96.2% of users find it useful
Calculating the Radial Velocity
Read Text Preview

Extract of sample "Calculating the Radial Velocity"

A) Calculating the radial velocity: in calculating the radial velocity one must demonstrate that light from distant galaxies must be shifted to longer wavelengths through what is referred to as the Red Shift using the equation:
∆λ/λ=V/C
For Galaxy 1:
(8204 angstroms-6563 angstroms)/8204 angstroms=V/300million
1641/8204×300million= 60.007million m/s
For galaxy 2:
(6549-6563)/6549=V/300million
64.132million m/s
b) For particle reactions, the conservation rules of Charge (C), Lepton number (L), and Baryon number (B), all have to hold, otherwise, the reaction cannot occur. Show that the reactions below follow these rules:
anti-neutrino + proton neutron +anti-electron
neutrino + neutron proton +electron
anti-neutrino(C=0, L=-1,B=0) + proton(C=+1,L=0,B=1) <—>neutron(C=0,L=0,B=1,) +anti-electron (C=+1, L=-1,B=0)
Totals on the left side: C = 0+1 = 1, L = -1 +0 = -1, B = 0 + 1=1
Totals on the right side: C = 0+1 = 1, L=0-1=-1, B = 0+1=1
So the values prove that they are equal

c) Evidence of the existence of dark energy
Scientists through the Big bang theory have known that the universe is expanding at an accelerating rate. Dark energy is the hypothesis that scientists believe to be the most viable to explain this observation. Scientists describe dark energy as a form of energy in space that accelerates the expansion of the universe. Evidence of dark energy is through the supernovae, large-scale structure theory, observational Hubble constant data, late-time integrated Sachs-Wolfe effect, and the measurement of the cosmic microwave background (Sarkar, pg33).
d) How the top-down scenario for the formation of structure in the Universe differs from the bottom-up scenario
The proponents of the top-down scenario proposed that the structure forms through the collapse of a huge gas cloud and as the cloud collapses the gas forms a rapidly rotating disk which is the galaxy (Sarkar, pg55). The bottom-up scenario, on the other hand, involves the merging of smaller objects to form large ones, which means that galaxies form by the coalescence of smaller structures to form one huge structure.
e) Features of the earth that demonstrate that it must be more than a million years old Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Assignment 3 Essay Example | Topics and Well Written Essays - 250 words - 2”, n.d.)
Assignment 3 Essay Example | Topics and Well Written Essays - 250 words - 2. Retrieved from https://studentshare.org/formal-science-physical-science/1645040-assignment-3
(Assignment 3 Essay Example | Topics and Well Written Essays - 250 Words - 2)
Assignment 3 Essay Example | Topics and Well Written Essays - 250 Words - 2. https://studentshare.org/formal-science-physical-science/1645040-assignment-3.
“Assignment 3 Essay Example | Topics and Well Written Essays - 250 Words - 2”, n.d. https://studentshare.org/formal-science-physical-science/1645040-assignment-3.
  • Cited: 0 times

CHECK THESE SAMPLES OF Calculating the Radial Velocity

Orbital Velocity of the Earth Using Stellar Spectra

The next step involved measuring the radial velocity of the star Arcturus in the solar neighbourhood.... he apparent color of the Arcturus changes with the radial velocity.... The paper "Orbital Velocity of the Earth Using Stellar Spectra" states that by measuring the Doppler Effect in a stellar spectrum, scientists can establish the orbital revolution velocity of the Earth, the Earth's orbital radius, and the radial velocities of the stars (in astronomical units)....
2 Pages (500 words) Essay

The Velocity of a Galaxy

Therefore, the calculation of the radial velocity will be;300,000 Km/s (8204-6563)/6563= 75011.... Therefore, the calculation of radial velocity will be as follows;300,000 Km/s (6549-6563)/6563= -639.... The paper "The velocity of a Galaxy" states that Marine mollusks have a number of series of million years in the universe.... Z = (Wavelength- Rest Wavelength)/ Rest Wavelength)Therefore the velocity is, 300,000 X (Wavelength- Rest Wavelength)/Rest Wavelength)a) Galaxy I has a Wavelength of 8204 and the Rest Wavelength of 6563....
2 Pages (500 words) Assignment

Gear box design

Power produced by the shaft will depend on the torque and the angular velocity.... can also be given by v/r where v = linear velocity while r is the radius of the diameter involved. ... In our calculations we assume the tangential force W t to be the torque produced at the tangential point of each part of the circular shaft. ...
3 Pages (750 words) Lab Report

Box of Tricks and Fixing the Wheel Axles inside the Box

The parts of the wheel in the box of tricks have been designed following instructions given in the case study, it has been tested by calculating the velocity of spinning and angular acceleration.... At the begging the wheel will start moving with aching speed because of the acceleration however it will reach a point where the acceleration rate will be constant until the velocity is changed.... At a point when a change in time is equal to zero, change in velocity is not perpendicular to the velocity, then the wheel will fit into our box of tricks....
7 Pages (1750 words) Assignment

Analysis of a Dynamic System - Gearbox Modelling

The author of the paper "Analysis of a Dynamic System - Gearbox Modelling" states that for any gearbox to be a successful incompatibility with the vehicle or machine where it is used, the design and modeling should take into account that a gearbox can withstand various during its use.... ... ... ...
11 Pages (2750 words) Case Study

The Application of an Engineering Design of Brake Calliper

The frequencies of the brake caliper do not occur uniformly when there is a fault in the system when there is a problem or imbalance in the brake caliper it will produce frequencies that do not emit radial vibrations.... This report "The Application of an Engineering Design of Brake Calliper" discusses the production, design, modelling and simulation of a callipers various procedures and testing that are done to ensure that the callipers produced are going to function at the minimum without any effect....
7 Pages (1750 words) Report

Moment of Inertia of a Flywheel

The velocity (V), and angular acceleration (α) were calculated with the help of the excel software before plotting a straight line.... he apparatus that was used is normally used to measure the moment of inertia for flywheel with radial arms in which the masses are attached....
5 Pages (1250 words) Lab Report

The Unlimited Power and Potential of Energy from Wind

The simulation produced graphs for attack angles 20 and 0 showing position versus velocity magnitude of the airfoil.... The wind has the energy and power to holder the direction of the airfoil as well as the velocity magnitude of the same.... In this case, we are going to study the effect of the attack angle on airfoil velocity magnitude.... Numerical simulation has been used to provide accurate prediction and the velocity magnitude of the foil and different attack angles as well as different surfaces....
6 Pages (1500 words) Research Paper
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Contact Us