Physics - May 2007

2007-05-08 11:39:05 · 1 answers · asked by Samantha D 1

2007-05-08 11:38:00 · 1 answers · asked by Samantha D 1

2007-05-08 11:36:56 · 1 answers · asked by Samantha D 1

A 1.4 kg ball is dropped from the roof of a building 100 meters high. While the ball is falling to earth, a horizontal wind exerts a constant force of 12.0 Newtons on it. How far from the building does the ball hit the ground? how long does it take to hit the ground? what is its speed when it hits the ground?

2007-05-08 11:36:13 · 2 answers · asked by elliot s 1

A uniform horizontal line of a matter is l=56,000 km long, and has mass M = 3.6 *10^5 kg. What is the (vector) gravitational force due to the line on a particle of mass m=25 kg located x= 20,000 km to the right? PLease do the problem and write the answer for unknown value of l, M, m and x -and any constants you except for small integers. only at the end substitute the numbers in for the letters.;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

problem 2 ( which is related)
What is the gravitational potential energy of the particle in the previous problem? ( if the particle is an infinite distance away, the potential enery is zero)
The second paragraph of the previous problem applies here.

2007-05-08 11:34:48 · 1 answers · asked by Anonymous

2007-05-08 11:30:43 · 6 answers · asked by holly 2

If a rigid body contains points a,b, and c and is said to be rotating about c with an angular velocity of W

then


relative to 'b' whats the angular velocity


or in simpler words, if one were at rest with (or moving at the same speed as b) what would the angular velocity seem to be??

Please explain how you were able to visualize it( I have problem .... visualizing it)

2007-05-08 11:01:43 · 3 answers · asked by I want to delete my answers account 3

to 99.9997% of the speed of light, then it's mass grows by some 430 times bigger than the original size. So if a photon goes the speed of light, what was it's mass at rest and what is it's mass at the speed of light?

2007-05-08 10:49:22 · 5 answers · asked by Anonymous

2007-05-08 10:02:01 · 2 answers · asked by Anonymous

2007-05-08 10:01:18 · 4 answers · asked by ally_thompson1 1

assume that the entire lower surface of the bed makes contact with the floor.

2007-05-08 10:00:54 · 3 answers · asked by Anonymous

What becomes of the loss in mass of nuceons when light atoms fuse to become heavier ones?

2007-05-08 09:59:13 · 1 answers · asked by Anonymous

2007-05-08 09:45:42 · 1 answers · asked by Alexander 6

2007-05-08 09:41:13 · 4 answers · asked by Anonymous

2007-05-08 09:26:10 · 7 answers · asked by lena 1

2007-05-08 08:28:03 · 16 answers · asked by vli814 1

I think it will keep the fizz in longer, by reducing the air in the bottle, my hubby says that squeezing the bottle creates negative pressure in the bottle which will pull the carbonation out of the soda. Who's right?

2007-05-08 08:24:08 · 11 answers · asked by HoyaDoc 4

2007-05-08 08:01:49 · 4 answers · asked by xl-yorg@sbcglobal.net 1

2007-05-08 07:53:04 · 1 answers · asked by Alexander 6

Either the cosmos have always existed or the cosmos had a beginning. If they have always existed the problem is that energy decreases and that if the universe were here for an eternity we would see it dying.

If the cosmos had a beginning, then how did "something" (cosmos) come from "nothing" ( pre-beginning).

2007-05-08 07:46:14 · 6 answers · asked by Anonymous

n s

2007-05-08 07:12:54 · 1 answers · asked by DOROTHY F 1

Battery wise, for a school project, serious.

2007-05-08 06:31:37 · 3 answers · asked by JeffK 1

2007-05-08 05:35:57 · 5 answers · asked by philosopher_pimp 2

2007-05-08 05:01:05 · 13 answers · asked by Anonymous

How far away is a light year?

2007-05-08 03:46:37 · 6 answers · asked by Anonymous

hypothesize the existence of alternate/parallel universes in which every point in history in which things could have gone differently DID go differently in another universe? Or was I misinformed?

Peace,
Byron

2007-05-08 02:18:30 · 6 answers · asked by Byron A 3

Hello,

We have just studies about semiconductors, diodes and transistors.

They have also taught us about NOT OR AND NAND NOR EXOR AND EXNOR gates.

I want to please my teachers by making a small device that is based on the knowledge of what we have studied,
so can any one please tell me whether i have knowledge enough to make a digital calculator or a Frecuency modulated FM Radio ??
IF yes please tell me how do i make it


IF no please suggest some other device that can be made without really putting in a lot of time into it




Thanks in Advance.

2007-05-08 01:49:19 · 3 answers · asked by wp1_wp1 1

E
M
C^2
None

2007-05-08 01:35:56 · 13 answers · asked by shane c 3

What is the main advantage of using fusion reactions to generate power?

What is the plasma in the fusion reaction?

How can spent fuel be reprocessed?

What is the advantage of nuclear fuel compared to coal (for generation of power)?

Thanks if you can answer any of these questions

2007-05-07 22:32:58 · 6 answers · asked by Anonymous

2007-05-07 21:47:09 · 2 answers · asked by Anonymous