Physics - October 2006

Is it a probability wave? or a load of possible paths or wave functions... what does the copenhagen interpretation mean? my head hurts!!!

2006-10-17 00:26:46 · 5 answers · asked by roberta 3

an airplane , diving at an angel of 53 degrees with the vertical, relases a projectile at an altitude of 730 meters. the projectile hits the ground 5 seconds after being released.

(a) what is the speed of the aircraft?

(b) how far did the projectile travel horizontally during its flight?

what were the...
(c) horizontal and (d) vertical components of its velocity just before striking the ground?...

plzzz!! any help.. i'm in desperate need of help... I don't want answers... just a way to solve it.. or hints.. plzz.. thank you!!

2006-10-16 19:58:24 · 4 answers · asked by betodemise46 3

2006-10-16 18:29:06 · 1 answers · asked by kumaresan d 1

If yes, give an example and if not, explain why not.

Now, given that this is a question as a HW assignment, I would say no because for one object to move one way, it is done by friction on the opposite direction.

HOwever, my friend argues that the direction of friction would be the same as the surface that the object was on. Thus, the table and friction are in the same direction.

I argued that friction force of one object cant be applied to another object....

Can anyone resolve this issue?

2006-10-16 17:10:47 · 4 answers · asked by leikevy 5

2006-10-16 15:51:49 · 2 answers · asked by Hoolahoop 1

An 1900 kg car is moving to the right at a constant speed of 1.80 m/s.

(a) What is the net force on the car?
____N to the right

(b) What would be the net force on the car if it were moving to the left?
___N to the left

how do you solve this?

2006-10-16 15:49:03 · 5 answers · asked by tingerpoo 2

is there? and if so, is this fixed point theoretically at rest and every other thing is moving away from it? ( give me a fixed point in space and i will move the earth out of its orbit... )

2006-10-16 15:36:56 · 7 answers · asked by ixat02 2

What is its initial velocity??

2006-10-16 15:21:07 · 5 answers · asked by bep 2

If you are traveling on a train moving 1000 mph and fire a gun from the rear in the opposite direction and the bullet velocity is 800 mph what would happen?

2006-10-16 14:55:04 · 8 answers · asked by Anonymous

Please provide a DETAILED SCIENTIFIC explantion, and credit/link your source(s).

2006-10-16 14:49:36 · 6 answers · asked by BugsBiteBack 3

A stone has a mass of 8.0 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.83. When the tire surface is rotating at 17 m/s, the stone flies out of the tread. The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Assume that only static friction supplies the centripetal force, and determine the radius r of the tire.

http://i21.photobucket.com/albums/b272/Cajunboiler/PICTURE.gif

2006-10-16 14:48:33 · 2 answers · asked by blah 1

EUREKA!!!!!!

2006-10-16 14:45:09 · 5 answers · asked by Anonymous

think of what it was like before we were born
we were nothing i mean just think of being nothing at all
would it be like a dream or would it be nothing
im confused
wtf man its scarry
what if there is no god and we are nothing when we die
omg im scaring myself i got to stop
peice to all my homies im out this message and ill be monitoring what yall think
ill give a shout out to my home dizzle
leon and jonathan and william and mathew and lots more stay tuned

2006-10-16 14:18:35 · 10 answers · asked by Anonymous

2006-10-16 14:08:38 · 7 answers · asked by bep 2

If you were decelerating, but you doubled your initial speed...what does this do to the time and distance it takes to stop my car?

To do this would I just plug in random numbers?

2006-10-16 14:08:11 · 4 answers · asked by beast 1

A space station is in a circulat orbit around the Earth at altitude (h)=5.0x10^2 km. Time for one orbit is 95 minutes. Find the orbital speed and centripetal acceleration.
Use the following values: Radius of the Earth : 6.4x10^6 m.
please i need the work because i have the right answer

2006-10-16 13:56:50 · 2 answers · asked by First L 1

2006-10-16 13:56:22 · 4 answers · asked by benzhowz 3

2006-10-16 13:39:00 · 3 answers · asked by Kassy 1

2006-10-16 13:38:29 · 1 answers · asked by Kassy 1

coefficient of kinetic friction between the box and the surface of the incline is 0.182 The initial speed of the box at the bottom of the incline is 3.48 m/s. How far does the box travel along the incline before coming to rest?

2006-10-16 13:30:09 · 3 answers · asked by meggers 3

2006-10-16 13:28:29 · 5 answers · asked by Homeless in Phoenix 6

A common saying goes, "It's not the fall that
hurts you; it's the sudden stop."
Translate this into Newton's laws of motion.

1. All are wrong.
2. Newton's First law
3. Gravitation law
4. Newton's second law
5. Newton's third law

2006-10-16 13:26:43 · 3 answers · asked by Anonymous

from what i understand quantam theory and relativity theory do not agree with each other. but i thought a theory was good unless it was disproven just once.. so isnt one or both of them wrong?

2006-10-16 13:24:49 · 8 answers · asked by alberta 1

Consider a stone at rest on the ground. There
are two interactions that involve the stone.
One is between the stone and the Earth; Earth
pulls down on the stone and the stone pulls
up on the Earth.
What is the other interaction?

1. between the stone and the ground

2. All are wrong.

3. between the Earth and air

4. between the ground and the Earth

5. between the ground and air

2006-10-16 13:18:20 · 11 answers · asked by xxlovexx 1

1. All are wrong.

2. You will exert smaller force on the pedals
of a bicycle if you pull up on the handlebars;
you can exert greater force on the pedals of a
bicycle if you push down on the handlebars.

3. You can exert greater force on the pedals
of a bicycle if you pull up on the handlebars;
you will exert smaller force on the pedals of a
bicycle if you push down on the handlebars.

4. You will exert smaller force on the pedals
of a bicycle if you pull up on the handlebars;
you will exert smaller force on the pedals of a
bicycle if you push down on the handlebars.

5. You can exert greater force on the pedals
of a bicycle if you pull up on the handlebars;
you can exert greater force on the pedals of a
bicycle if you push down on the handlebars.

2006-10-16 13:16:36 · 13 answers · asked by xxlovexx 1

2006-10-16 13:16:11 · 9 answers · asked by teddybears 3

What's the point of looking for something you can't prove, like telepathy. Even if it exists, it's nature is beyond our faculty of comprehension. If you think you know the theory of everything, well what is it or likely to be?

2006-10-16 13:14:34 · 9 answers · asked by Anonymous

1. All are wrong.

2. Action: Bat pushes ball backward. Reaction: Earth pulls down on ball. Action: Ball pushes air. Reaction: Air pushes ball.

3. Action: Ball pulls down on Earth. Reaction: Earth pulls up on ball. Action: Air pushes ball. Reaction: Ball pushes air.

4. Action: Earth pulls down on ball. Reaction: Ball pulls up on Earth. Action: Air pushes ball. Reaction: Ball pushes air.

5. Action: Bat pushes ball forward. Reaction: Ball pulls up on Earth. Action: Ball pushes air. Reaction: Air pushes ball.

2006-10-16 13:06:16 · 6 answers · asked by xxlovexx 1

A stone has a mass of 8.0 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.83. When the tire surface is rotating at 17 m/s, the stone flies out of the tread. The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Assume that only static friction supplies the centripetal force, and determine the radius r of the tire in meters.

I got 1.55 m but that is wrong. I first found static friction (I got 1.49) then pluggd that in as the centripetal force and got 1.55 for r.

What did I do wrong?

2006-10-16 13:00:19 · 2 answers · asked by Confused 1

2006-10-16 12:58:08 · 1 answers · asked by teddybears 3