Physics - January 2007

I am just getting into it i have read masaru emoto's books on his studies on water and just recently saw What The Bleep Do We Know, which is sort of an intro to the whole quantum physics thing and Waking Life which deals with some aspects.

2007-01-31 07:38:06 · 5 answers · asked by Inquiring Mind 1

A rock dropped from 1200 ft., ignoring air resistance. How long does it take to hit ground? How fast will it be traveling at impact? Would these answers change if it were thrown 90 mph horizontally? How far would the horizontal rock go before impact?

I have the 32 ft/sec^2. I just don't seem to be doing something correct. I think it hits at the same time. Then I just convert the 90 mph into sec for the first answer.

2007-01-31 07:37:36 · 5 answers · asked by dude 5

I also need the pressure that corresponds to this temperature, and cite sources if possible.
To give you context, it is for my thermodynamics class. We're in the chapter that introduces steam tables. Compressed liquid-compressed solid tables are not in the appendices of my book.

*Note: If you're going to answer 0 °C, refrain from doing so.

2007-01-31 07:23:10 · 5 answers · asked by Fxer 2

I need one. Please no schems but photos, videos or animations.

2007-01-31 06:52:07 · 1 answers · asked by Anonymous

2007-01-31 06:51:08 · 1 answers · asked by guneet b 1

2007-01-31 06:34:20 · 1 answers · asked by Phil L 1

2007-01-31 06:27:22 · 4 answers · asked by patrick e 3

I need a good amount of information on the Multiverse.

2007-01-31 05:58:06 · 3 answers · asked by Anonymous

degrees to the ground. Calculate the component of the 50 N force responsible for moving the mower.

2007-01-31 05:56:27 · 4 answers · asked by nkh0003 1

You take the high road and I'll take the low road,and I'll be in Scotland before ye...Thanks for your answer...Mr.McLaren

2007-01-31 05:49:27 · 9 answers · asked by Anonymous

2007-01-31 05:34:55 · 2 answers · asked by Anonymous

a. Find the kinetic energy of the ball when it hits the ground.
b. What is the speed of the ball when its hits the ground?

2007-01-31 05:08:05 · 3 answers · asked by nkh0003 1

If car A is traveling at 50 km/hr at an angle of 10 degrees east of north and car B is traveling at 70 km/hr at an angle of 30 degrees south of east, what is the velocity of car A at seen by car B?

2007-01-31 05:06:56 · 1 answers · asked by GSU 1

If Evil Kneival drives his motorcycle up a ramp (inclined 30 degrees above the horizotal) and sails over 10 buses (spanning 36 meters) and lands on a similar ramp, what was his speed at the top of the ramp (either one)?

2007-01-31 05:05:39 · 1 answers · asked by GSU 1

An airplane is flying horizontally at 200 m/s, and it drops a care package to some people on the ground below. If the package takes 5 seconds to hit the ground, how high above the ground is the plane flying? Also what is the speed of the package when it hits the ground?

2007-01-31 05:04:08 · 1 answers · asked by GSU 1

I go out for a walk. I first walk 1km north, then I walk 2 km west. Then I walk northwest ( an angle exactly between north and west) for 2 km. What is my displacement (magnitude and direction (direction means find the angle))? If I did this walk in 2 hours, what is my average velocity (magnitude) in meters per second?

2007-01-31 05:02:56 · 2 answers · asked by GSU 1

This is a feeder Q.Could it be that what preceded was not a chemical event that caused the almighty explosion? Gregory Bateson suggests that thought came before an energy explosion.Was there something like a primordial energy that gave birth to elementary matter and fundamental particles from which arose what we now term as the Universe? And is it also possible that we hold it within us the secret of understanding the nature of the elemental advent? Thoughtful answers only. Thanks.

2007-01-31 04:48:49 · 16 answers · asked by polymath 1 3

2007-01-31 04:25:30 · 8 answers · asked by Anonymous

In the equation for current I=Ne/t, where I is current, N is the number of elementary charge, e is elementary charge (1.6 x 10 to the power of -19), and t is time, what does N represent and how do I calculate it?

2007-01-31 04:18:54 · 4 answers · asked by Anonymous

All of the NOVA and other physics documentaries show the Big Bang happening "in" something -- 3D space. Was empty space already there for matter to expand in, or did space [the void] enter into existence with the Big Bang? When physicists say "the universe is expanding" to they mean only that the galaxies are moving away from each other or do they mean that the volume of the 3-D space that contains all matter is getting bigger?

2007-01-31 04:00:01 · 3 answers · asked by robot_pi 1

Doing a job I want to go futher in research in physics in any interdisciplinaries preferrably Space physics or Quantum physics.

2007-01-31 03:22:26 · 3 answers · asked by Gigil A 1

I think that light is mass, because black hole can suck it. Also, gravity can bend it. I am not a scientist but a mathematician. I need help.

2007-01-31 03:18:28 · 9 answers · asked by dUdE 1

If I take a ball made of a solid structure and remove the air, is it possible to make it float? The ball would be rigid, not like a balloon, so that it can withstand the vacuum inside without collapsing.

Air pressure is 15 pounds per square inch - if you reduced this to half that value inside the ball, would that mean it has an upwards force of 7 pounds per square inch, so it would float off the earths surface and into the atmosphere?

2007-01-31 03:10:35 · 9 answers · asked by Michael B 2

a- the momentum of each object
b- the kinetic energy of each object
c- the total momentum of all the objects
d- the total kinetic energy of all the objects

2007-01-31 02:48:47 · 4 answers · asked by AC 1

2007-01-31 02:41:40 · 5 answers · asked by Miss LaStrange 5

2007-01-31 02:25:03 · 1 answers · asked by Sree 2

A rock dropped from 1200 ft., ignoring air resistance. How long does it take to hit ground? How fast will it be traveling at impact? Would these answers change if it were thrown 90 mph horizontally? How far would the horizontal rock go before impact?

I have the 32 ft/sec^2. I just don't seem to be doing something correct. I think it hits at the same time. Then I just convert the 90 mph into sec for the first answer.

Thank you for any help. I'm snowed in and can't get to the math lab.

2007-01-31 02:21:44 · 2 answers · asked by dude 5

2007-01-31 02:21:01 · 1 answers · asked by Sree 2

2007-01-31 02:12:27 · 10 answers · asked by vignesh e 1

2007-01-31 02:07:36 · 6 answers · asked by rcpass 2