Physics Essays

1. The rear window of an automobile is defogged by attaching a thin heating element to its inner surface. By electrically heating the element, a uniform heat flux may be established at the inner surface. For 4 mm thick window glass, determine the electrical power required per unit window area …

Radio Waves * TV and FM radio (short wavelength) * Direct line of sight with transmitter (do not diffract) * Medium wavelength – travel further because they reflect from layers in the atmosphere * Used for transmitting signals. Microwaves * Microwaves are used in satellite television broad casting. * It …

A young hiker has been on a long walk. He is now sitting in front of a small campfire, drinking a hot cup of soup. It is dark and a frost is beginning to form on his tent. Explain the hiker’s heat gains and losses, and what mechanisms would come …

Answers should be submitted by 9:00 am on Monday September 24, 2012 in the box provided. Please write your ID number and Laboratory day clearly on your script. 1. Give an expression for the Balmer-Rydberg equation in terms of wavelength λ, the Rydberg constant R, and the integers m and …

In the sports domain, biomechanics play a very important role. Athletes are constantly looking for ways to improve performance and to have an advantage over an opponent. At the elite level, technique and proper execution is often the deciding factor in a win or loss. However, in some particular cases, …

Seatwork: Express your understanding of the concept and mathematics of momentum and impulse by answering the following questions. (1whole intermediate paper) 1. Determine the momentum of a: a) 60-kg halfback moving eastward at 9 m/s. b) 1000-kg car moving northward at 20 m/s. c) 40-kg freshman moving southward at 2 …

Schools are struggling with the issue of whether physical education classes (“PE”) are a necessity or are an extra-curricular. However, PE is and must be an absolute necessity. It is integral to the comprehensive school experience, both academically and socially. As such, it is vital that physical education classes be …

For most of us, electricity is a modern convenience we take for granted. This fundamental technology plays an important role in everything we do. It’s hard to imagine life without a television, computer, or even a simple lamp. Globally, many places struggle for a sustainable electrical power. Countries, states, and …

Purpose: The purpose of this experiment is twofold. The first part is designed to determine the origin of the color of a carbonated beverage. Be specific in your Purpose, which soda are you measuring? In the second part you will determine how much a sample of grape soda has been …

CHAPTER 11: DISPLACEMENT: the difference between the final and initial position of a point (for instance, the center of mass of a moving object). The actual path covered to reach the final position is irrelevant. It can simply be defined as the shortest distance between the final point and initial …