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2005
June

Questions Asked on June 28, 2005

An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. How deep is
1. 5 answers
2. asked by Jarrad Michael
3. 11,418 views
The nearest star beyond the sun is Alpha Centauri, 4.2 x 1016 meters away. If we received a radio message from the star today,
1. 3 answers
2. asked by Jarrad Schomaker
3. 7,845 views
The diameter of the sun makes an angle of .53 degrees from earth. How many minutes does it take for the sun to move one solar
1. 1 answer
2. asked by Jarrad Michael
3. 4,487 views
A skipper on a boat notices wave crests passing his anchor chain every 5 s. He estimates the distance between wavecrests to be
1. 1 answer
2. asked by Jarrad Michael
3. 3,474 views
How to you compute the intercepts of a quadratic function?For the x-intercept, set x to 0. For the y-intercept(s) (if any), set
1. 0 answers
2. asked by jenn
3. 1,365 views
Hi, I am confused about physics, more specifically force.I know that the formula for force is: f=ma So what if an object
1. 4 answers
2. asked by Ashley
3. 1,292 views
How might you distinguish a sodium vapor street lamp from a mercury vapor steet lamp?http://en.wikipedia.org/wiki/Sodium_lamp
1. 0 answers
2. asked by Jarrad Schomaker
3. 1,285 views
An electron drops from the fourth energy level, in an atom to the third level and then to the first level. Two frequencies of
1. 0 answers
2. asked by Jarrad Schomaker
3. 1,031 views
A spider hangs by its string at an eye level 20 cm in front of the plane mirror. You are behind the spider, 50 cm from the
1. 0 answers
2. asked by Jarrad Michael
3. 997 views
What elements results if one of the neutrons is in a nitrogen neucleus is converted by radioactive decay into a proton?The
1. 0 answers
2. asked by Jarrad Schomaker
3. 851 views
Use the shell model to explain why a lithium atom Li, is larger than a beryllium atom, Be.I don't think it is larger. It has a
1. 0 answers
2. asked by Jarrad Schomaker
3. 836 views
: In case of a quadratic function, why are there two x-intercepts and one y-intercept?Let's say x^2 = y, which is a quadratic
1. 0 answers
2. asked by jenn
3. 745 views

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