Physics - September 2006

2006-09-26 09:49:49 · 6 answers · asked by mike6878 1

What is the integral of 3(x^2)-5x+9 from 0 to 7?

i appreciate your help!

2006-09-26 09:31:59 · 4 answers · asked by gunther 1

Can anyone show me how to solve this showing all the steps?

What are the horizontal and vertical components of the 125m displacement of a superhero who flies down from the top of a building at an angle of 25degress below the horizontal?

2006-09-26 09:15:17 · 2 answers · asked by Anonymous

If there are many Universes around us or within us multiverses.
Other realms and dimentions parallel Universes etc.
Then they are all realities within those worlds and dimentions.
What is reality if they are all realities all as real as eachother?

2006-09-26 09:14:02 · 8 answers · asked by vinspitfire 1

2006-09-26 08:29:34 · 3 answers · asked by ingsoc1 7

i am making a catapult for a science class and i am having trouble finding a design? i need to be able to build it (4 People) and i need it to be on the cheap side

2006-09-26 08:18:02 · 2 answers · asked by Anonymous

How many neutrons are in the most common isotope in the element selenium? (easier to understand)
- Mandi , GA

2006-09-26 08:09:38 · 4 answers · asked by Anonymous

what's the difference between P' V' and PV? In performing calculations within equations are they the same or considered different?
( meaning pressure and volume)

2006-09-26 07:41:34 · 2 answers · asked by dreamz 4

2006-09-26 07:14:42 · 4 answers · asked by sweetness01201 2

The ? is :

1a. what is the mass of the air in a physics classroom that is 8.0 m wide, 10.0 m long, and 2.8 m high?(the mass density of air is 1.29 g/dm^3).

1b. If the mass density of lead is 11.4 g/cm^3, what volume would be occupied by the same mass of lead?


My work: ......since V=WxLxH and D=M/V

1a. 8.0m x 10.0m x 2.8m= 224m^3=V
1.29 g/dm^3= m / 224m^3
1.29 g/dm^3=.00129g/m x 224m^3= 2.9 x 10^-1 is the mass


1b. D=M/V
11.4g/cm^3=2.9 x10^-1g/m^3/V
11.4g/cm^3=.114g/m^3
so .114g/m^3 x V=2.9 x10^-1g/m^3
V=2.9x10^-1g/m^3 / .114g/m^3
V=2.54 g???

Am i right or did i make any mistake in units or calculations anywhere?

2006-09-26 07:05:26 · 2 answers · asked by dreamz 4

In theory many theory's deny the possibility , however all theory is not fact until proven beyond question , accepted facts will always be subject to new theory and therefore are not un-questionable .

It seems to me that when the question of perpetual motion is raised , the only reasonable answer is "we don't know?"

2006-09-26 07:05:18 · 22 answers · asked by Anonymous

is this correct that :whenever we increase the width the gravitation force increase and vice versa...e.g: 2 objects with same weight a&b>a is wider than b>that the gravitation force is more in a than b

2006-09-26 06:56:53 · 5 answers · asked by ink 2

I know that the force of gravity is based on the mass of an object and on a scale from 0 to infinity it would be linear or a steady incline. For example Earth=1 and a black hole=1000 and all points in between would be equally spaced. My thoughts are that gravity is not consistently linear through out the universe. The circumstance for the variation in gravity is up in the air(meaning I don’t know)however I am curious to know what you think. Also please don’t answer my question with a question, which I am sure there are many.

2006-09-26 06:27:04 · 8 answers · asked by David W 1

2006-09-26 06:14:01 · 15 answers · asked by Raghupathy C 1

2006-09-26 05:45:35 · 5 answers · asked by Anonymous

2006-09-26 05:35:39 · 7 answers · asked by thiru s 1

2006-09-26 05:17:10 · 5 answers · asked by the_news_junky 2

it would seem to me that the control/manipulation of gravity is the key to space travel using both the repelling force of ++ or --,also,if able to focus/concentrate gravity on another object,the attraction/pulling force of +- or -+.-Please answer in "laymans terms"-thanks

2006-09-26 04:54:21 · 2 answers · asked by floydsfire 1

i am 11th class student plz suggest me a project for me a physics exibhition?????plz plz plz plz bee fast.......................

2006-09-26 04:42:22 · 3 answers · asked by divesh n 1

The value of g on the moon is 1/6 of its value on Earth.
a) Will a ball dropped from the same height by an astronaut hit the ground with a smaller or larger speed than on Earth?
b) Will the ball take more or less time to fall?

2006-09-26 04:27:54 · 10 answers · asked by Bear 1

Can you?

2006-09-26 04:25:39 · 21 answers · asked by Anonymous

I have a figure with two boxes attached to a pully, sitting on each other. M1 needs to go to the left or towards the pully and M2 needs to go away from the pully. The pully is situated to the left of both blocks.

How can I determine the force (F) needed to keep two blocks moving at a constant speed-m2 to the rigth and m1 to the left. assume both the frictionless pulley and the rope to be massless: m1 has a weight of 5.0 N and m2 has a weight of 10 N; and µ k=0.40 for all surfaces.

2006-09-26 03:59:26 · 4 answers · asked by Anonymous

Will it be easier to pull an object or to push it?

2006-09-26 03:57:58 · 17 answers · asked by Akshay p 2

Assuming you could have an infinitly tall frictionless vaccum which is under the earths gravitaional influence. Could one drop a pennie and expect it to hit and exceed the speed of light?

2006-09-26 03:49:06 · 18 answers · asked by bill_armstrong@sbcglobal.net 1

2006-09-26 03:13:14 · 5 answers · asked by subra m 2

2006-09-26 03:07:11 · 11 answers · asked by Anonymous

2006-09-26 02:44:56 · 9 answers · asked by Anonymous

2006-09-26 02:39:32 · 11 answers · asked by Anonymous

2006-09-26 02:25:17 · 11 answers · asked by siva r 1

The moon and sun cause the tides, but how about the black holes or the mass that our solar system is attracted is this detectable?

2006-09-26 02:01:07 · 6 answers · asked by treb67 2