Physics - October 2006

2006-10-26 22:56:59 · 10 answers · asked by hamster h 1

I watch lots of science fiction films but will this really happen

2006-10-26 22:34:44 · 9 answers · asked by td321123 1

2006-10-26 22:13:22 · 7 answers · asked by Omar 1

general knowledge

2006-10-26 22:06:44 · 8 answers · asked by wilson n 1

A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is .20 and the push imparts an initial speed of 4.0m/s?

2006-10-26 21:44:47 · 3 answers · asked by Anonymous

There are times where i feel that my center of gravity is very good and i feel like im lower to the ground, and my feet move quicker. I play basketball and there are days when i feel so much more stable and feel alot quicker and everything just feels right. Then there are days where i feel like i have a bounce to my step and its hard to get low to the ground and everything becomes much more harder to do, i feel much slower and my leaping ability is far less. Can anyone explain this? and what can i do to prevent this "hop" in my step

2006-10-26 21:27:04 · 6 answers · asked by adfadf a 1

suppose that you are standing on a train accelerating at .20g. what minimum coefficint of static fricyion must exist between your feet ad the floor if you are not to accelerate..

2006-10-26 20:41:28 · 3 answers · asked by Anonymous

A 100g ball moving at 8m/s bounces off a wall with an elastic collision and leaves at the same speed. What is the work done???

2006-10-26 20:29:20 · 4 answers · asked by avrod 2

i need like a small timeline that has the theories over time

2006-10-26 20:27:05 · 3 answers · asked by Mansour 2

a police car is searching foe a fugitive taht managed to escape a while ago.knowing that he is now safe,the fugitive begins to take a rest until he notices a police car approaching him at 10m/s,accelerating at 5m/s^2 and it is 100m away.the fugitive grabs a motorcycle and starts it accelerating at the same rate as the police car.how mush time will it take the police car to catch the fugitive?

what is the effect of the height of the track(incline) to the cart's acceleration?may answer is this the effect is that the cart move fast because if the height is higher the higher the acceleration too??i'm right if not ,explain to what is the effect of height..

why is that time is related to the inclnation of the track?please expalin to me

thanks again

2006-10-26 20:22:26 · 2 answers · asked by jhen_hidaka 1

2006-10-26 20:05:40 · 9 answers · asked by shelly 2

2006-10-26 19:33:32 · 2 answers · asked by Sporadic 4

Would it be pulled along with the earth? Would it be left behind and be pulled into the sun? Would it fly off in some other direction from its own momentum? Or would there be some other result for it?

2006-10-26 19:29:40 · 6 answers · asked by kveldulfgondlir 5

A bungee cord is stretched twice its length. what changed? volume? mass? density?

2006-10-26 19:28:09 · 8 answers · asked by jwli920 2

since the earth is costantly attracted to the sunby the gravitation interaction,why does it not fall into the sun and burn up?.

2006-10-26 19:19:27 · 3 answers · asked by candy 1

2006-10-26 19:17:20 · 3 answers · asked by Ambulance Girl 1

how did everything start, the universe just wasnt there at one point something had to create all the stuff around us, space, air, everything. HOW DID IT COME TO B? what do u think?

2006-10-26 19:06:23 · 13 answers · asked by KEMC 3

When you heat a pot of water to boiling, before there's any sign of bubbles, the water begins to make a sort of metallic hissing noise. What causes it?

2006-10-26 18:47:46 · 5 answers · asked by Patrick C 4

If I was trying to find the velocity of something in cm, could I use 9.8m/s^2 or would I have to convert that acceleration into cm?

2006-10-26 18:44:42 · 4 answers · asked by beast 1

The reason for the fly wheel is an alternative to batteries in electric cars. But the flywheel would need to be heavy and fast to carry enough energy. It would act like a super power gyroscope bolted to the floor of the car. How would the car's normal handling be affected?

2006-10-26 18:22:10 · 3 answers · asked by stooker 2

2006-10-26 17:59:21 · 5 answers · asked by bowlerdudeca 2

I only have water and oxygen. Is there anymore more that is required to have life on Earth?

2006-10-26 17:53:55 · 7 answers · asked by jtrieu 1

2006-10-26 17:27:12 · 18 answers · asked by Anonymous

A small metal ball is suspended from the ceiling by a thread of negligible mass. The ball is then set in motion in a horizontal circle so theat the thread describes a cone. The acceleration of gravity is 9.8 m/s2. The angle is 26 degrees. The distance is 1.7m and the mass is 6.2 kg.
a)What is the speed of the ball when it is in circular motion ?
b)How long does it take T period for the ball to rotate once around the axis ?

2006-10-26 17:16:50 · 2 answers · asked by Anonymous

2006-10-26 16:43:36 · 5 answers · asked by Anonymous

2006-10-26 16:22:27 · 4 answers · asked by RT 1

This exclude magician and trickers

2006-10-26 16:20:35 · 5 answers · asked by theone 1

Two 500 g blocks of wood are 2.0 m apart on a frictionless table. A 10 g bullet is fired at 400m/s toward the blocks. It passes all the way through the first block, then embeds itself in the second block. The speed of the first block immediately afterward is 6.0m/s.What is the speed of the second block after the bullet stops?



I know i use conservation of momentum but I just can't figure it out...maybe i might be plugging in numbers wrong, but could i please get some advice or help on this one?

2006-10-26 15:55:29 · 2 answers · asked by Bryan C 2

Okay i was in a big debate with a few people over this and i did lots of reading on wikipedia and howthingswork and coudnt find everything i was looking for

-Movement of molecules-do they make a sound when they bump past one another, and if so is the sound in a measurable frequency
-Magnets-what makes them create their field, is the field putting out any kind of frequency, and if so what wave form
-AC volts-changes at 60hz but what kind of wave is it? how does it travel through the wire. is it pulsing?
and could you provide some info on the force of earth and solar system, and force of normal everyday items on eachother

2006-10-26 15:50:21 · 2 answers · asked by Curth 3

A sports car is accelerating up a hill that rises 19.0° above the horizontal. The coefficient of static friction between the wheels and the road is µs = 0.91. It is the static frictional force that propels the car forward. (a) What is the magnitude of the maximum acceleration that the car can have? What is the magnitude of the maximum acceleration if the car is being driven down the hill?

2006-10-26 15:48:04 · 2 answers · asked by Any help? 1