Physics - October 2006

For instance, a light car versus a heavy car going at the same speed have very different amounts of kinetic energy. Why is wind only based on speed?

2006-10-21 17:43:40 · 11 answers · asked by presidentrichardnixon 3

2006-10-21 17:33:55 · 3 answers · asked by valerie f 1

A moving craft travels away from a stationary one at close to the speed of light (constant velocity). Both have synchronized clocks. Looking out the back window of the 'moving' one, it is not possible to tell which craft is actually moving. Both experience time in a 'normal' way in their own respective crafts. When the traveling craft returns, there is a discrepancy--its clock has moved slower than the stationary one by so much--a measurable difference as to which clock is 'faster' and which one was therefore actually not moving. Is this kind of 'moving' not relative but 'absolute' since we know measurably which clock is 'ahead'? The two reference frames don't seem exchangable since you can actually see the clocks, which one is ahead and which one is behind.

2006-10-21 17:16:37 · 9 answers · asked by lotherro 1

2006-10-21 17:05:36 · 8 answers · asked by aashit 1

Was there ever a 'Big Bang' or was the Universe created by GOD? Describe what you think about multiple parallel universes.

2006-10-21 16:56:52 · 19 answers · asked by Anonymous

Every single second your brain is bombarded with 4 billion bits of information. Your brain is only capable of processing 2,000 bits of that info. That means there is more out there than I’m able to see. So what is reality?

2006-10-21 16:44:42 · 9 answers · asked by power of thought 1

a pole vaulter of a mass of 60.0 kg vaults to a height of 6.0 m before dropping to thikc padding placed below to cushion her fall.

what is her speed with which she lands?

If the padding brings her to a stop in a time of .50 s, what is the average force on her body due to the padding during that time interval?

How do I go about solving this? What are my formulas that I would used?

2006-10-21 16:13:02 · 4 answers · asked by Trevor M 1

Our current structural determination sets limits as to the atoms full potential. We have unleashed the nuclear potential failing to harness this strength. I believe we do not fully comprehend the relationship the neutron shares with the proton in lieu of their alignment to the electrons. I have determined the neutron, specifically the psi meson; its quark and anti-quark functions as a "reverse bias" of energy to matter. With this concept we can harness the nuclear potential and put end to war. This will supply us with a perpetual energy, thereby canceling the need to covet our neighbors fuel supplies.
Our current mind set eludes to constants which are variables that arise due to lack of harnessing the nuclear potential. Unification will present one force arising from equilibrium of the two; the electro-weak and magnetic-strong. With the emphasis here, energy which is now greater indicated when squaring the velocity, will equal the mass. L2=em if; (cv) (hv) (1/2mv2) = L2

2006-10-21 16:02:16 · 6 answers · asked by shewhowatches 1

a ball is thrown upward from the top of a 25.0 m tall buiding the ball's initial speed is 12.0 m/s at the same instant, a person is running on the ground at a distance of 31.0 m from the building. what must be the average speed of the person if he is to catch the ball at the bottom of the building?

2006-10-21 15:55:10 · 3 answers · asked by m dizzle 2

2006-10-21 15:30:54 · 15 answers · asked by Lee H 1

For instance, is light affected by gravity?
Can a photon interact with graviton (string theory) in some way?
And is electricity affected by temperature, like, can electricity freez?

2006-10-21 15:08:15 · 4 answers · asked by Ateviel 3

A place kicker must kick a football from a point 32.7 m (= 35.8 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 21.6 m/s at an angle of 53.7° to the horizontal. By how much does the ball clear or fall short of clearing the crossbar (enter positive values if the clears and negative values if it fall short)? Also, What is the vertical velocity of the ball at the time it reaches the crossbar? Enter positive values when it is still rising and negative values when it is falling.

2006-10-21 14:48:16 · 2 answers · asked by warning9 2

2006-10-21 14:37:38 · 18 answers · asked by Anonymous

2006-10-21 14:32:32 · 8 answers · asked by Anonymous

Angle=90 degrees
Side=85m

2006-10-21 14:31:05 · 8 answers · asked by alanis118 1

I was thinking, what if one of Humanity's most destructive forces went head-on with one of Mother Nature's? In this hypothetical scenario, I guess the nuke would be in the center of the hurricane. What would happen to the hurricane, the explosion, and what would be the resulting aftermath?

2006-10-21 14:24:10 · 15 answers · asked by koncur 2

What do the term "electron configuration" means,
How do electrons move from a "shell" to another,
What are the electrons numbers of two of the elements you provided?

2006-10-21 13:32:36 · 4 answers · asked by Pete 2

(in space or a vacuum I heard)

2006-10-21 13:31:10 · 3 answers · asked by jimppanzee 2

The bird is also flying at an angle of 15.32o below the horizontal. She has a fish in her claws and drops it. What will be the fish's VECTOR velocity or final velocity when it splashes?

2006-10-21 13:27:16 · 3 answers · asked by physics 1

a toilet the water goes counter clockwise down the drain,but on the other side of the Equater it goes just the opposite,clockwise.

2006-10-21 13:24:47 · 7 answers · asked by kman1830 5

I am entering a contest where i have to have a picture of a physics principle. What are some ideas?

One I have so far, is i can have a block suspended from a string, and take a time-lapse photo of how far an arrow makes the block move.

Other ideas?

2006-10-21 13:00:14 · 3 answers · asked by Anonymous

By 'understand' I mean be able to work with equations to model systems and make predictions.

2006-10-21 12:23:21 · 5 answers · asked by Current User 1

If so, then ?????????????

2006-10-21 12:00:59 · 11 answers · asked by angelonavaro 1

What is the maximum flow rate of a liquid (hydraulic oil) in a pipe. I have been given to understand that there is limit as to how much oil will pass through a pipe irrespective of the pump pressure, is this true and if so, how do i work it out. Trying to develope hydraulic drive system, according to my calculations the system would need to move just 17cc per engine revolution through the system ( engine revs rising up to 6000rpm)

2006-10-21 11:35:34 · 2 answers · asked by Old Cynic 3

physics

2006-10-21 11:21:30 · 3 answers · asked by linkinpark_labc 1

At a waterpark, sleds with riders are sent along a slippery, horizontal surface by the release of a large, compressed spring. The spring with a force constant k = 4400 N/m and negligible mass rests on the frictionless horizontal surface. One end is in contact with a stationary wall. A sled and rider with total mass 75.0 kg are pushed against the other end, compressing the spring 0.355 m. The sled is then released with zero initial velocity.

What is the sled's speed when the spring returns to its uncompressed length?
and i got 2.72 m/s which is correct

and i still need to solve: What is the sled's speed when the spring is still compressed 0.215 m?

2006-10-21 11:15:16 · 1 answers · asked by Theresa C 2

How is it that "nothing" can escape from the event horizon and yet the gravitational field exists beyond it? (I.e. on our side of the horizon of a singularity). What is the field and why isn't the field carrier limited by the same "curvature"? No information escapes but gravity does....

2006-10-21 11:02:58 · 4 answers · asked by Anonymous

Would the trapeze atrists need their safety net above them?

2006-10-21 10:30:37 · 18 answers · asked by Anonymous

Planning an attack on a large city... require several Kg of weapons grade uranium... already looked on E-bay - where can I get some from. Money is not a factor...

2006-10-21 10:25:34 · 15 answers · asked by OsamaBinBush 2

2006-10-21 09:56:27 · 6 answers · asked by monkeychip1001 1