1.)I have 2 vertical line segments,2 horizontal line segments,and 2 pairs of perpendicular line segments.What am I?

2.)I have 1 pair of parallel line segments and 4 line segments.I do not have perpendicular line segments.What Am I?

2006-11-07 10:44:33 · 12 answers · asked by --»vann<3♥ 5 in Mathematics

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If photons are "massless" how are these things possible? (read details)?

Accodring to the Theory of Special Relativity, light, passing by a body, travels in a path that is curved according to the gravity and the electromagnetic field of that body. The force generated by gravity is calculated using mass. Albeit, electromagnetic force would have the greater pull, but it is theorized that gravity has a pull on light. Furthermore, it is theorized that black holes, which generate extreme gravitational pulls, do not allow light to escape.

Photons, upon striking a special metalic surface, transfer their kinetic energy to electrons, which begin to flow. Kinetic energy is calculated with mass and velocity.

Photons are said to have a non-zero energy. According to Einstein, Energy equals the mass of an object multiplied by its velocity squared. If mass is zero, doesn't that also make energy zero?

I don't understand this concept. Can someone please clarify this to me in simple terms. I've read all the websites that talk about the definitions of mass.

2006-11-07 10:40:52 · 8 answers · asked by Rockstar 6 in Physics

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does anyone know 12 types of landforms that can be located near hawaii or mexico?

please dont name mountains or other landforms that are real.

2006-11-07 10:40:50 · 2 answers · asked by Melissa 1 in Geography

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What is the value for m, and how do you solve the equation showing work?

A mass m at the end of a spring vibrates with a frequency of 0.88 Hz. When an additional 680-g mass is added to m, the frequency is 0.60 Hz. What is the value for m, and how do you solve the equation showing work?

2006-11-07 10:40:17 · 3 answers · asked by Pat M 1 in Physics

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At what distance from equilibrium will it have acceleration equal to half its mximum acceleration?Show work!?

A mass attached to the end of a spring is streched a distance X from equilibrium and released. At what distance from equilibrium will it have acceleration equal to half its maximum acceleration? How do you show the work for this equation?

2006-11-07 10:37:53 · 2 answers · asked by Pat M 1 in Physics

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If a huge asteroid was on a collision course with earth and would destroy everything.What would you do?

2006-11-07 10:37:16 · 12 answers · asked by super stud 4 in Astronomy & Space

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At what point in evolutionary history did the pharynx join up with the larynx.?

And what were the evolutionary advantages and disadvantages of this occurrence?

2006-11-07 10:36:11 · 5 answers · asked by Seeker 4 in Zoology

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brain teaser for Homework-need answer ASAP!?

Ariel, John, Melinda, and Zach are playing a game similar to go fish. each player has 7 cards. 2 cards must have a certain relationship in order to make a pair. Each card can be used in only 1 pair per person. according to this rule, ariel has 3 pairs, john has 2, but melinda doesn't have any.

the hint said to find the pattern try all of the operations.

also: please explain how you got your answer and the percentage you think your answer is correct...

thanx!

2006-11-07 10:35:19 · 1 answers · asked by zgirl 1 in Mathematics

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