Physics - August 2006

than there is matter in the whole universe? I do not know the actual quotation but it's from Michael Talbot who wrote 'Holographic Universe' who happened to hold conversations with some of the forefathers (sp?) of Physics, so I presume he knew what he was talking about?

2006-08-31 13:00:23 · 10 answers · asked by true_searcher 2

and takes off under a constant net force of 37,000. What is the net force that acts on the plane's 78kg pilot?

2006-08-31 12:42:11 · 4 answers · asked by luna_moon 1

yes or no

2006-08-31 12:42:03 · 3 answers · asked by Anonymous

2006-08-31 12:38:14 · 24 answers · asked by pelister56 4

2006-08-31 12:37:39 · 2 answers · asked by Anonymous

What is the difference in after effects of a nuclear explosion and atomic? Such as radiation, etc?

2006-08-31 12:30:54 · 7 answers · asked by Anonymous

2006-08-31 12:05:03 · 10 answers · asked by aca 1

suppose you tossed a ball straight up while in a car moving ahead at constant speed, where would the ball land? justify

Thank you for answering my question

2006-08-31 12:01:28 · 9 answers · asked by solv6868 1

2006-08-31 11:51:53 · 2 answers · asked by vanillacoke100cal 1

Relativity makes 2 statements if I have it right: 1 - nothing can go faster than the speed of light and 2 - when two objects are in motion relative to each other you can arbitrarily assign one as "stationary" and attribute all the motion to the other. Ok. So if I am approaching a point, say from the east, at 90% of the speed of light, and you are approaching the same point from the west, also at 90% of the speed of light, then aren't we approaching each other at 180% of the speed of light?

Thanks for any help on this. I can't get past it into the real meat of relativity and it's frustrating.

2006-08-31 11:37:32 · 8 answers · asked by All hat 7

if you throw a peice of paer when there is air it doesn't go anywhere it just floats to the ground what happens if you throw a peice of paper in a vacuum?

2006-08-31 10:47:10 · 5 answers · asked by Anonymous

A film director is organising a stunt for his latest film. A stuntman will jump over part of the Grand Canyon on a motorbike. The canyon is only 100 m wide at the part where the ramp has been built and the length of the ramp is 12 m. As a safety inspector you have been asked to assess if the jump is possible. Using the diagram of the ramp below you must calculate the minimum speed the motorbike must by doing at the top of the ramp if it is to make it across. (You can ignore air resistance or wind).

ramp is 30 degrees so opp is 6m

2006-08-31 10:21:39 · 5 answers · asked by halemerick 1

A car travels up a hill at a constant speed of 36 km/h and returns down the hill at a constant speed of 57 km/h. What is the average speed for the round trip.

2006-08-31 10:01:53 · 7 answers · asked by benzene boy 1

A film director is organising a stunt for his latest film. A stuntman will jump over part of the Grand Canyon on a motorbike. The canyon is only 100 m wide at the part where the ramp has been built and the length of the ramp is 12 m. As a safety inspector you have been asked to assess if the jump is possible. Using the diagram of the ramp below you must calculate the minimum speed the motorbike must by doing at the top of the ramp if it is to make it across. (You can ignore air resistance or wind).

2006-08-31 09:34:12 · 5 answers · asked by halemerick 1

I am trying to find the Watts necessary to heat 2oz. of a mist (similar to water) flowing through a tube at 2oz. per min. There is a heating coil on the outside of the tube. Without knowing much about the tube material, what is an estimate of how much power is required to heat the mist flow from 70 deg. F to 550 deg. F?

Thank you for any assistance.

2006-08-31 09:18:47 · 3 answers · asked by B K 2

2006-08-31 09:01:00 · 6 answers · asked by JAMES 4

2006-08-31 08:26:19 · 17 answers · asked by john p 3

2006-08-31 08:16:38 · 12 answers · asked by goring 6

2006-08-31 07:57:44 · 12 answers · asked by Spanner 6

2006-08-31 06:59:44 · 5 answers · asked by goring 6

Guys, I have been asking a few questions on this forum and you GUYS ROCK !!!

First i though we can really compress matter. Now after hearing from others this is what i have understood [please correct me]

1. You can compress by reducing space between grains
2. By reducing the space between nucleus and electron orbit [basically you end up with neutron star]
3. By reducing the space between the quarks withing a neutron [we get a black hole]

Unbelievable, i though all opaque objects were rock solid......but now i say everything is rock porus !!

With out compressing the MATTER we can increase the density so much is simply mind boggling.

Guys you rock ...... Thanks for all those who explained differnt queries that i have been asking.

2006-08-31 06:57:39 · 5 answers · asked by Anonymous

Does a proton have such a force of interaction that it can pull pluto which is not a planet?

2006-08-31 06:53:10 · 11 answers · asked by goring 6

2006-08-31 06:27:07 · 5 answers · asked by Anonymous

A motorist drives along a straight road at a constant speed of 16.5 m/s. Just as she passes a parked motorcycle police officer, the officer starts to accelerate at 1.00 m/s2 to overtake her. Assume that the officer maintains this acceleration.

Determine the time it takes the police officer to reach the motorist.

Find the speed of the officer as he overtakes the motorist.

Find the total displacement of the officer as he overtakes the motorist.

2006-08-31 06:16:18 · 2 answers · asked by egruber84 2

Is the size and speed/gravitation of planet earth not important when calculating force/mass/velocity/gravity levels of individual "entities" and calculations? Am i wrong to question our continuance of linear 1 dimensional equations? hmmmmm

2006-08-31 06:06:40 · 3 answers · asked by b g 1

We know that the size of nucleus is very-very-small compared to the orbit of the electrons.

1 litre of water normally weight 1kg.

Hypothetically lets say we are able to remove these spaces and just have one litre of matter just created by packing only the nucleus next to each other with no space, lets just assume we strip off all the electrons. (do not worry about H2O, just think we are dealing with the nucleus of Oxygen)
I guess it might be too damn heavy......but would like to hear from experts.

2006-08-31 05:49:37 · 11 answers · asked by Anonymous

An object starts at time t = 0 with a velocity of v0 = +3 m/s and undergoes a constant acceleration of a = -16 m/s2.

a) At what time does the speed of the object reach zero?
b) How far from its starting (t = 0) position is the object at time t1?
c) At what time does the object again pass through the starting (t = 0) position?
d) If the object had initially been moving twice as fast (6 m/s), how far would it have gone before its velocity reached zero?
e) Suppose a second object begins moving with a constant speed of v = 3 m/s in the same direction from the same location at the same time as the object in part (d). At what time do the paths of these two objects once again cross?

2006-08-31 05:22:05 · 5 answers · asked by hardik p 1

no bs please...

2006-08-31 05:13:10 · 2 answers · asked by Anonymous

Grains of fine sand are approximately spheres with an average radius of 50 μm and are made of silicon dioxide. A solid cube of this material with a volume of 1 m3 has a mass of 2600 kg.

a)What mass of sand grains would have a total surface area (the total area of all the individual grains) equal to the surface area of a cube 1 meters on an edge?
mtotal = ______kg.

2006-08-31 05:03:32 · 4 answers · asked by hardik p 1

Or is magnetism equivalent toTime itself?

2006-08-31 04:53:42 · 4 answers · asked by goring 6