×
Log in to StudySoup
Get Full Access to University Physics - 13 Edition - Chapter 3 - Problem 63p
Join StudySoup for FREE
Get Full Access to University Physics - 13 Edition - Chapter 3 - Problem 63p

Already have an account? Login here
×
Reset your password

A grasshopper leaps into the air from the edge of a

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 63P Chapter 3

University Physics | 13th Edition

  • Textbook Solutions
  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

4 5 1 328 Reviews
11
2
Problem 63P

A grasshopper leaps into the air from the edge of a vertical cliff, as shown in ?Fig. P3.57.? Find (a) the initial speed of the grasshopper and (b) the height of the cliff.

Step-by-Step Solution:
Step 1 of 3

Lecture 1: Statistics Info and some Basic Principles -­‐ Statistics is the most important science in the whole world: for upon it depends the practical application of every other science and of every art: the one science essential to all political and social administration, all education, all organization based on experience, for it only gives results of our experience." Florence Nightingale, Statistician -­‐ Statistics are numbers measured for some purpose. -­‐ Statistics is a collection of procedures and principles for gathering data and analyzing information in order to help people make decisions when faced with uncertainty. -­‐ Course Goal: Learn various tools for using data to gain understanding and make sound decisions about the world around us. -­‐ Chapter 1 starts out with eight statistical stories with morals, presented as seven case studies. -­‐ In each, data are used to make a decision, a judgment, about a situation. These case studies follow a wide range of ideas and methods and introduce a lot of statistical language. -­‐ 1. Who are those speedy drivers Principle: Simple summaries of data can tell an interesting story and are easier to digest than long lists. 2. Safety in the Skies Principle: When discussing the change in the rate or risk of occurrence of something, make sure you always include baseline or base rates. 3. Did anyone ask whom you’ve been dating Principle: A representative sample of only a few thousand, or perhaps even a few hundred, can give reasonably accurate information about a population of many millions. 4. Who are those angry women Principle: An unrepresentative sample, even a large one, tells you almost nothing about the population. 5. Does prayer lower blood pressure Principle: Cause-­‐and-­‐effect conclusions cannot generally be made on the basis of an observational study. 6. Does Aspirins reduce heart attack rates Principle: Unlike with observational studies, cause-­‐and effect conclusions can generally be made on the basis of randomized experiments. 7. Does the internet increase loneliness and depression Principle: A statistically significant finding does not necessarily have practical significance or importance. When a study reports a statistically significant finding, find out the magnitude of the relationship or difference. 8. Did your mother’s breakfast determine your sex Principle: For studies that found a relationship or difference, find out how many different things were tested. The more tests done, the more likely a statistically significant difference is a false positive that can be explained by chance. Watch out if many things are tested and only 1-­‐2 of them are statistically significant.

Step 2 of 3

Chapter 3, Problem 63P is Solved
Step 3 of 3

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

This full solution covers the following key subjects: cliff, grasshopper, height, fig, Find. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. The answer to “A grasshopper leaps into the air from the edge of a vertical cliff, as shown in ?Fig. P3.57.? Find (a) the initial speed of the grasshopper and (b) the height of the cliff.” is broken down into a number of easy to follow steps, and 33 words. This textbook survival guide was created for the textbook: University Physics, edition: 13. The full step-by-step solution to problem: 63P from chapter: 3 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. Since the solution to 63P from 3 chapter was answered, more than 362 students have viewed the full step-by-step answer. University Physics was written by and is associated to the ISBN: 9780321675460.

Other solutions

People also purchased

Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

A grasshopper leaps into the air from the edge of a