Physics - November 2006

The satellite has a mass of 150 kg, and it is launched into orbit at a height of 12,800 km above the earth's surface.

I got 4.558 x 10^14 m/s, but the answer is 4,558 m/s... Did I do something wrong?

2006-11-27 11:46:29 · 3 answers · asked by abc123 1

2006-11-27 11:45:45 · 1 answers · asked by JIN S 1

A uniform 12 kg, 2.8 m long ladder rests against a vertical frictionless wall at a point 2.4 meters off the floor. Find the vertical end horizontal components of force exerted by the ladder on the floor.


I am very confused on this problem assigned by my physics professor and would like any help possible in finding a way to solve. He gave us the answers of F(Y)=117.6N and F(X) = 55N BUt i don't know how he got those answers so any help would be great!
Thanks

2006-11-27 11:38:41 · 2 answers · asked by ncaafan2 2

2006-11-27 11:34:08 · 1 answers · asked by kissmybum 4

A(n) 1100 kg car is parked on a 4 degree incline. The acceleration of gravity is 9.8 m/s^2. Find the force of friction keeping the car from sliding down the incline. Answer in unites of N.

2006-11-27 11:27:44 · 5 answers · asked by Anonymous

a worker has to move a 17 Kg brate along a flat floor in a warehouse. the coefficient of kinetic friction between the crate and the floor is 0.214. the worker pulls horicontally on a rop attached to the crate, with a 49.0 -N. what is the resultant acceleration of the crate?

2006-11-27 11:23:16 · 2 answers · asked by Andrew L 1

hey guys help me out here i need to use these questions for the future so i can use them as examples thanks..

1. http://answers.yahoo.com/question/index;_ylt=AiJfAAXeJTsOERncRteZnG3sy6IX?qid=20061127150654AA3yrK8


2. http://i34.photobucket.com/albums/d130/MATTRAINES/q3.jpg?t=1164668225


3. http://i34.photobucket.com/albums/d130/MATTRAINES/q4.jpg?t=1164668264


4. http://i34.photobucket.com/albums/d130/MATTRAINES/q5.jpg?t=1164668771

2006-11-27 11:17:00 · 1 answers · asked by PAT R 2

2006-11-27 11:10:35 · 12 answers · asked by idealsforsale 2

In a right triangle how do you find an angle if all you know is the length of the hypotenus and a the length of a leg?

2006-11-27 10:51:18 · 3 answers · asked by Ike A 2

2006-11-27 10:25:09 · 3 answers · asked by hrokow1 1

There is a head on collision. I need to prove relative veolcity after the collision is equal & opposite to the relative velocity before it. (working only in 1-D) I want to show v1-v2 = - (v1'-v2'). How do I get started?

2006-11-27 10:14:31 · 2 answers · asked by eeje2003 1

hey everyone ive got some physics probs that i need answers too to study from in the future, i tried scanning the page but it didnt work properly so i made them all up on paint, i did the best i could so try and work with it =]

thanksss in advance

links:

1. http://i34.photobucket.com/albums/d130/MATTRAINES/q2.jpg?t=1164668205

2. http://i34.photobucket.com/albums/d130/MATTRAINES/q3.jpg?t=1164668225


3. http://i34.photobucket.com/albums/d130/MATTRAINES/q4.jpg?t=1164668264


4. http://i34.photobucket.com/albums/d130/MATTRAINES/q5.jpg?t=1164668771

2006-11-27 10:06:54 · 2 answers · asked by PAT R 2

if car 2 came to a stop in 15 seconds how much power in (watts) did it take to stop car 2 at the stop sign by applying force to the brakes?

Can someone PLEASE show me how to figure this problem out. Help would be greatly apperciated.

2006-11-27 10:03:30 · 4 answers · asked by Lizzie 5

A balloon contains 3.7 liters of nitrogen gas at a temperature of 87 K and a pressure of 101 kPa. If the temperature of the gas is allowed to increase to 24 C and the pressure remains constand, what volume will the gas occupy?

2006-11-27 09:49:38 · 4 answers · asked by AnnaQ 1

how is the air pressure in a tightly sealed house affected by operating the furnace?

2006-11-27 09:33:45 · 5 answers · asked by AnnaQ 1

Would a microwave clothes dryer be practical? If not, why?

2006-11-27 09:33:23 · 7 answers · asked by gntolng 4

You don't know the denstiy, and you're measuring a liquid. The liquid has an unknown substance in it. Given the mass, how can you find the volume of the liquid and the substance without having to use a graduated cylinder?

2006-11-27 09:28:58 · 4 answers · asked by never you mind 2

to keep ( fizz) in carbonated beverages after they have been opened, should you store them in a refrigerator or in a cabinet? why

2006-11-27 09:27:19 · 3 answers · asked by beauty mirna 3

2006-11-27 09:10:33 · 4 answers · asked by Anonymous

An atomic nucleus initially moving at 420m/s emits an alpha particle in the direction of its velocity, and the remaining nucleus slows to 350m/s. If the alpha particle has a mass of 4.0u and the original nucleus has a mass of 222u, what speed does the alpha particle have when it is emitted.
plzzzzzzzzzz help me and give me the formula to find it.

2006-11-27 09:00:15 · 5 answers · asked by nice_ girl 1

2006-11-27 08:58:22 · 6 answers · asked by Amor Mia 1

I have taken a probably unhealthy interest in physics, especially in the field of the elctromagnetic spectrum. Problem is, I do not yet know how these waves are created, for example in microwave ovens. A friend told me that some are created by oscillating a current through, say, a copper coil at a particular frequency. Is this true? and if so, what types/bands of the elctromagnetic spectrum does this work for?

2006-11-27 08:56:25 · 1 answers · asked by i.mason1@btinternet.com 1

The world record for free hen's egg throwing is 96.90 m, set in 1981. Assuming no air resistance, what would have been the (a) throwing speed; (b) elevation angle; (c) maximum height; (d) time of flight?
(Assume acceleration due to gravity = 10m/s/s)
This question is possible to answer!!!
Please show how you got the question..this would be a great help to me!!
And best of all...best answer gets 10 points!!!!

ok...i understand what everyone is saying...but in the test book these are the answers given...
(a)31.1m/s
(b)45 degrees
(c)+24m
(d)4.4s
if anyone can help show me how they got these anwers it would be a big help

2006-11-27 08:44:20 · 1 answers · asked by Brody 3

Anti-Gravity....Can anyone help me out here?

I'm a senior biochem major so I'm not exactly illiterate when it comes to this type of science but my older brother who is quite the theororiest was trying to explain to me how he read somewhere that someone had taken a sub atomic particle (I assume an electron) and used a superconductor and somehow created a gravitational field with it. He also mentioned how it broke one of the laws of thermodynamics but he can't account for which one exactly. There seemed to be a lot of holes in his explanation but it seemed to him to be some very promising findings in terms of future technology.

Does this sound vaguely familiar to anyone and could you elaborate on this? 10 points goes to the best and most helpful elaboration.

2006-11-27 08:38:07 · 4 answers · asked by Shortstuff71 3

Plzzzz help me i dont know which formula do i have to use for answer this question.
plzzzz explain me in a simple way and with formula.

2006-11-27 08:28:24 · 1 answers · asked by schoolgirl 1

It is said that in ancient times a rich man with a bag of gold coins froze to death while stranded on a frozen lake. Because the ice was frictionless, he could not push himself to shore. What could he have done to save himself had he not been so miserly?

plzzzzzzzzzz help i dont know how to answer this .

2006-11-27 08:24:35 · 8 answers · asked by schoolgirl 1

2006-11-27 08:07:32 · 7 answers · asked by ne h 1

Please reply today, its for an exam next Tuesday.

2006-11-27 08:04:20 · 5 answers · asked by Taudiee 1

This is for a school project... plz help if you know any ways! Thanx!

2006-11-27 07:49:20 · 1 answers · asked by sparkelsinurface 2

single crystal & bulk crystal and differant between them ?
disadvantages of preparation of thin film ?
impuirty
vacuum system

2006-11-27 07:20:22 · 1 answers · asked by d_love_e_2 1