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Question #173223 in Physics
Given
Mass(a) = Mass(b)
V(a)1 = 6.2 m/s
V(a)2 = final velocity of the cue ball
V(b)1 = 0 m/s
V(b)2 = final velocity of the billiard ball
angle deflected of the billiard ball = 45° from the horizontal
x = angle deflected of the cue ball from the horizontal
6.2 m/s = (Va2){cos(x) + sin(x)}
In the x-direction
6.2 m/s + 0 m/s = (Va2)(cos x) + (Vb2)(cos 45)
The direction of the cue and billiard balls are the same because of the law of inertia.
In the y-direction
0 m/s + 0 m/s = (Va2)(sin x) + (-Vb2)(cos 45)
The final velocity of the billiard ball in the y-direction is negative because of the difference in the y-direction between the cue and billiard balls.
If we use substitution and elimination methods for two equations we can find 6.2 m/s = (Va2){cos(x) + sin(x)}.
However, I am having difficulty in the next sequence. In which part am I wrong? What is the solution? Do we have to use the formula of coefficient of restitution? I need your help. Thank you.
in the BaCI2 (aq)+Na2SO4(aq)Ba
The tallest living man at the time of this writing is Sultan Kosen, who has a height of 251 cm. The shortest living man is Chandra Bahadur Dangi, who has a height of 54.6 cm. Heights of men have a mean of 174.12 cm and a standard deviation of 7.10 cm. Which of these two men has the height that is more extreme?
Design a program that will ask the user to give three numbers and then the program will determine which of the three numbers has the highest in terms of numerical value using termary operator
// maximum.cpp
// Author: Mr jake R. pomperada, BSCS, MAED- IT
// Date: august 23, 2018 Thursday 10:55 pm
// Location: Bacolod City, Negros occidental
// Website: http://www.jakerpompereda.com
A company named Best Options is doing an analysis of its 10 best sales representatives. The analysis is important for the company to search for the best salesperson among them. The particular salesperson will be awarded a token of appreciation from the company. A computer program is required to assist the company in doing the analysis. Write a complete C++ program to do the following:
(a) Declare three arrays, namely StaffName of type string, StaffID of type integer and Sales of type double. The entire array’s size is 10.
(b) Prompt the user to enter the salesperson’s name, staff ID and their respective sales, and store into the arrays. Staff name will be stored in array StaffName, staff ID will be stored in array StaffID while sales will be stored in array Sales.
(c) Find and display the average sales of the 10 sales person.
(d) Print the staff name, ID and the amount of sales of the sales person with the highest sales.
Five hundred children participated in a field demonstration. Their heights averaged 110cm with a standard deviation of 6cm.
1. What is the probability that a child picked at random has a height greater than 116cm?
2. What is the probability that the height of a child picked at random is less than 104cm?
3. What is the probability that the height of a child picked at random is between 110cm and 122cm?
4. How many children have heights between 98 and 104cm?
5. How many children belong to the upper 15% of the group?
Aircraft sometimes acquire small static charges. Suppose a supersonic jet has a 0.60 µC charge and flies 30ᵒ north of west at a speed of 660 m s-1 over the Earth’s south magnetic pole, where the 8.00 X 10-5 T magnetic field points straight up. Determine the magnetic force on the supersonic jet.
5. Survival of the Biggest (while loop)
by CodeChum Admin
Looping a number and taking away each digit of it is so much fun, but I wanted to try out a much more complex task: getting the largest digit among them all.
Think you can handle the job?
Instructions:
- Input a non-zero positive integer.
- Using the same concept as the previous problem, figure out how to separate the digits of a number and determine which of the digits is the largest one, using a while. Afterwards, print the largest digit.
- Tip #1: Create another variable that will hold the largest digit. Initial its value to a negative integer, like -1, outside the loop.
- Tip #2: Everytime you get the rightmost digit, check if it is greater than the current largest digit. If it is, set it as the new largest digit.
A copper cylinder has a radius of 2.5 cm and a length of 5.6 cm at 20 degree Celsius. The rod is heated until its temperature is 85 degree Celsius. Find the density of the copper at 85 degree Celsius. If the density of the copper at 20 degree Celsius is 8,960 kg/m^3
A population consists of the five measurements 2,6,8,3 & 1. How many different samples of size n=2 can be drawn from the population? What is the mean and variance of the sampling distribution of the sample means? Follow the steps1to 6
