Consider a simple model for a rocket launched from the surface of the Earth. A better expression for a rocket’s position measured from the center of the Earth is given by:
where RE is the radius of the Earth (6.38 ✕ 106m) and g is the constant acceleration
of an object in free fall near the Earth’s surface (9.81 m/s2). Continue reading
Problem statement
Particles with two different masses m and M are located along a linear harmonic chain
of infinite length. The chain has a force constant k (see the picture below). The
distance between two particles with the same mass is equilibrium and equals to a.
qj and rj are the deviations of particles mj and Mj from their equilibrium positions respectively. Continue reading
Groups of information in statistics in form of qualitative or quantitative attribute of set of variables are referred as data. Data can be either grouped or ungrouped.
Ungrouped data is a rough data which have been just gathered and no further steps were performed on this data. Continue reading
As an example of the cumulative distribution, we will build and analyze the cumulative frequency distribution for rolling two standard number cubes.
Readme file is a small document, which is usually attached to the program. Readme files are written by software developers and contain basic information about the program, including the info about the installation or management of the system settings, contact information, license, gratitude, and information about the software version. To distribute the software it is important to know how to write the Readme file. Poorly written Readme document can be frustrating, tiring for the user, while a good one will help him to easily learn the basic information about your program. Continue reading
Create new MS SQL database. In this database, create a table called “store” with the following information:
Apples provided by Sunshine Ltd: 3.08 (expiration date 2016.07.20) Apples provided by NewFood: 3.88 (expiration date 2016.07.30) Apples provided by FreshGoods: 2.53 (expiration date 2016.06.25) Potatoes provided by Sunshine Ltd: 1.61 (expiration date 2016.10.01) Potatoes provided by NewFood: 2.01 (expiration date 2016.12.11) Tomatoes provided by Sunshine Ltd: 3.65 (expiration date 2016.05.20) Tomatoes provided by NewFood: 5.30 (expiration date 2016.05.25) Eggs (pack of 12) provided by Sunshine Ltd: 4.59 (expiration date 2016.06.13) Eggs (pack of 12) provided by FreshGoods: 3.13 (expiration date 2016.06.01) Carrots provided by Sunshine Ltd: 2.50 (expiration date 2016.08.22) Carrots provided by FreshGoods: 3.30 (expiration date 2016.07.30) Carrots provided by NewFood: 2.80 (expiration date 2016.08.10) Onions provided by NewFood: 1.95 (expiration date 2016.05.20) Onions provided by FreshGoods: 1.35 (expiration date 2016.05.10) Onions provided by FreshFoods: 5.25 (expiration date 2016.05.25) Plastic bags provided by Sunshine Ltd: 0.10 (no expiration date) Paper bags provided by PaperFactory Ltd: 0.15 (no expiration date) Paper bags provided by FreshMoods: 0.20 (no expiration date) Handkerchiefs provided by FreshMoods: 0.30 (no expiration date)
Problem 1. Find the voltage VR2 in the circuit on the Figure 1 below.
Solution
The problem 1 can be solved using the superposition method. This method is based on the elimination of all sources except one at a time, utilizing a series/parallel analysis in order to determine drops of voltage in the modified network for each source of the power. Continue reading
Create new Android application which shows a Happy New Year congratulation message and appropriate background picture. When the text corresponding to a family member getting congratulated is being clicked on by the user, it should respond with switching to a different family member (i.e. father, mother, brother, grandfather). Continue reading
Frequency is the measure of how how often an event appears. The frequency distribution table is a tool which can help in comparing the frequencies of different events occurrence. There are two type of frequency distributions which are used in statistics: grouped frequency distribution and ungrouped frequency distribution. The first one is utilized for a high quantity of data, when it is impossible to list all of them in the table (“Grouped Frequency Distributions”, 2016). Continue reading
Hello! Today I want to teach you how to always win in tic tac toe game and show you the implementation of the C++ code!
You should start from the corner:
The essence of this strategy is that “X” performs the first move not to the central cell, but into the corner. In this case, the toe has several options. Continue reading
