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To demonstrate interference of sound waves, a buzzer is placed in the center of an empty mailing tube that is 0.80 m long. The sound waves emerge from the two ends of the tube in phase and interfere with each other in the region surrounding the tube. When you stand 4.0 m directly in front of the tube, equidistant from its two ends, you hear a loud sound. If you then move parallel to the tube a distance of 1.3 m, the sound nearly disappears,
(a) What's the wavelength of the buzzer's sound waves?
(b) What's the buzzer's frequency? (Assume the speed of sound in air is 340 m/s) Teacher gave answer a) .49m and b) 694Hz what are the steps?
If wind blows at 35 m/s^2 over the house, what is net force on the roof if its area is 240 square meters and the roof is flat? Show all work, with equation and substitution units.
Life cycle of a fern scenario: Hybrid 1- the sperm in the antheridium has 8 chromosomes; dominant gene 'A' is on one of the chromosomes that produce large sporophyte fronds.
Your friend has isolated plasma membranes and reassembled the membranes into small vesicles. Using fluorescently labeled lectin, he sees that some of his vesicles are labeled while others are not.
Assume you have made a collection of mutant fruit flies that aredefective in several aspects of DNA repair. You test each mutantfor its hypersensitivity to 3-DNA damaging agents.
2-experimental varieties of strawberry are produced by crossing a hexaploid line that contains 48 chromosomes and a tetraploid line that contains thirty-two chromosomes.
A friend of yours is complaining that every time he eats ice cream, a good cheesey pizza, or really, any dairy products, he experiences very painful abdominal cramping, gas, and diarrhea.
A neighbourhood group called NICE is utilizing the principles of common law-private and public nuisance and trespass- to bring attention to the problem of air, ground and water pollution which is occurring on adjoining land to the Northfield Dairy..
AA Aa aa Generation 1 250 500 250 Generation 2 750 200 50 Generation 3 900 90 10 (1) Is this population remaining in HW Equilibrium from generation to generation.
From the data, determine whether these genes are located on the same chromosome or on two different chromosomes.
The rought ER and the Golgi complex are responsible for the biosynthesis of integral membrane proteins, including the glycoproteins commonly found in the plasma membrane.
List the two kinds of macromolecules that have been partially digested by the time acid chim moves into the intestine. Where did this digestion take place, and what enzymes are involved.
Photosynthetic, multicellular eukaryote that is anchored to the rocks surrounding the coastline of crystal lake , but has no roots. Low growing and non-motile, this organism relies on the tidal rise and fall of crystal lake for water and nutrient ..
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