Homework for the week of January 28‚ 2013 Read this week’s sheet for information on the review session. Monday (due Tuesday): • Complete Friday’s homework‚ which was to “Find an article about the place at which you want to volunteer or the topic about which you want to demand change. CHUMM the article. Additionally‚ print information about the place (or cause) from its own website. CHUMM the printed information.” If your group members used the same readings (article or webpage)‚ please
Premium Theodore Roosevelt Week-day names Human rights
Rogue Waves For centuries‚ mariners have spread stories about giant sudden waves which appeared out of nowhere without warning which were strong enough to capsize even the mightiest and largest ships. Several vessels—such as the S.S. Waratah‚ the M.S. Munchen‚ and the S.S. Edmund Fitzgerald—were all rumored to have been sunk by rogue waves (Walsh par. 3). Further‚ rogue waves have been blamed for ripping the bow off of a Norwegian freighter near the tip of South Africa in 1974‚ almost capsizing
Premium Tsunami Wave
Alpha waves are regular‚ have medium frequency‚ and occur while resting. Beta waves are irregular‚ have a low amplitude‚ and occur while attentive. In stage one of the sleep cycle‚ we experience Theta waves‚ which have similar frequencies and regularity to Alpha waves. Stage two also involves Theta waves‚ but may also have short bursts of Alpha and Beta waves called sleep spindles‚ or Delta waves called k complexes. These are the two shallowest sleep
Premium Sleep
The third-wave feminists are critical to the first and second waves because it ties all of the women’s movements previous accomplishments to all women‚ regardless of race‚ color‚ sexual orientation‚ and class. Without the third-wave feminists only white women would have the luxury of being able to vote‚ being provided equal employment opportunity‚ being heard when faced with sexual harassment and marital rape‚ and being able to broadcast the discrimination of gender. America wouldn’t be the country
Premium Feminism Gender Women's rights
Before beginning our research on radio waves‚ to us‚ radio waves were just waves going through the atmosphere‚ carrying sound from one place to another. Those were our ignorant days! We did not realize the complicated terms and theories involved. In the following report you will see how we advanced in our knowledge of radio waves‚ and we hope it will do the same for you. Radio waves are a combination of two kinds of electric vibrations. Audio frequency waves‚ which represent voice and other
Premium Radio Electromagnetic radiation Broadcasting
Radio Waves In the modern society‚ radio is the most widely used medium of broadcasting and electronic communication : it plays a major role in many areas such as public safety‚ industrial manufacturing‚ processing‚ agriculture‚ transportation‚ entertainment‚ national defense‚ space travel‚ overseas communication‚ news reporting and weather forecasting. In radio broadcasts‚ they use the radio waves which can be both microwaves and longer radio waves. These are transmitted in two ways: amplitude
Premium Radio Electromagnetic radiation Electromagnetic spectrum
to point through a medium is called a ___. a. period b. periodic wave c. wavelength d. pulse Answer: D A wave is a continuous and repeating disturbance of a medium and a pulse is a single disturbance. 2. If the particles of the medium are vibrating to and fro in the same direction of energy transport‚ then the wave is a ____ wave. a. longitudinal b. sound c. standing d. transverse Answer: A In longitudinal waves‚ particles of the medium vibrate to and from in a direction parallel
Premium Wave Frequency Sound
Electromagnetic Waves It was once the great Scottish physicist James Clerk Maxwell (1831-1879) who had presented that electric and magnetic fields unstable together can form a spreading wave‚ appropriately called an electromagnetic wave. The properties of an electromagnetic wave are as follows: 1. They can travel through a vacuum at the same high speed‚ which is much faster than other types of waves that travel through a material. 2. They show the normal wave properties of reflection‚ refraction
Free Electromagnetic radiation Light Electromagnetic spectrum
Unit: Sinusoidal Waves Subject: Advanced Algebra/ Trigonometry Overarching Question: What are real life applications of Sinusoidal Waves? First and Foremost‚ Sinusoidal Waves are waves that can be described to have a sine curve‚ usually repetitive. Sine waves are a part of the mathematic topic‚ Trigonometry. However‚ these types of waves may be found in various other scenarios. For instance‚ many are found in nature‚ you just have to observe with care. This means to say that they aren’t just
Premium Wave Phase
inexpensive‚andsafesoisoftenthefirstchoiceof a medical imaging method where feasible Sound waves • Sound wave propagate by longitudinal motion (compression/expansion)‚ but not transverse motion (side-to-side) • Can be modeled as weights connected by springs 1Ultrasonic Waves and properties • Mechanical waves are longitudinal compression waves • “Ultrasound” refers to frequencies greater than 20kHz‚ the limit of human
Premium Acoustics Ultrasound Sound