Thursday
December 5, 2013

# Posts by jenna

Total # Posts: 454

Physics
An airplane pilot sets a compass course due west and maintains an airspeed of 221km/h . After flying for a time of 0.490h, she finds herself over a town a distance 125km west and a distance 13km south of her starting point. FIND THE MAGNITUDE OF WIND VELOCITY. v = ___ km/h

Astronomy
Star 'A' has twice the radius of star 'B'. The ratio of the surface area of star 'A' to the surface area of star 'B' is equal to 8 4pi 2 1/8 4

UCSD
A jetliner is moving at a speed of 230 m/s. The vertical component of the plane's velocity is 36.4 m/s. Determine the magnitude of the horizontal component of the plane's velocity.

physics
A jet travels at 490 m/s. How long does it take to travel 227m? Answer in units of s

Math
solve for x Pc/x = c/p

physics
I am looking out a window that is 1.3m tall. A water balloon suddenly drops across the entire length of the window in .22 seconds. How far above the window was it dropped?

chemistry
At 518 degress celsius that rate of decomposition of a sample of acetaldehyde, initially at a pressure of 363 torr, was 1.07 Torr/sec when 5% had reacted, and 0.760 torr/sec when 20% had reacted. What is the order of the reaction?

Science
At 518 degress celsius that rate of decomposition of a sample of acetaldehyde, initially at a pressure of 363 torr, was 1.07 Torr/sec when 5% had reacted, and 0.760 torr/sec when 20% had reacted. What is the order of the reaction?

Math
A turtle is at the bottom of a 12 foot well. Each day it crawls up 3 feet, but each night it slips back 2 feet. After how many days will the turtle reach the top of the well? ANSWER: The turtle will reach the top of the well after [ ] days... Thanks

Biochemistry
Which of the following peptide fragments would you expect to find buried in the center of a water soluble protein? Explain your answer. a) DEGKRGDK b) ALVWIFLF

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