Physics - January 2007

2007-01-31 23:54:00 · 5 answers · asked by Nate H 2

2007-01-31 23:40:52 · 22 answers · asked by Addicted To Abercrombie & Fitch 2

2007-01-31 23:32:32 · 5 answers · asked by believer 3

how long is a pice of string and if a pice of string is that long how long is a pice of roap?

2007-01-31 23:23:46 · 14 answers · asked by mrs apps 2

:D

2007-01-31 22:22:05 · 3 answers · asked by darf05 1

2007-01-31 22:07:30 · 9 answers · asked by yehey 1

please do answer.. :D thanks :D

2007-01-31 21:46:36 · 6 answers · asked by darf05 1

2007-01-31 20:32:49 · 8 answers · asked by Bhumit K 1

Ideas should include experiments on electromagnetism and induction and web addresses of animations and experiments.

2007-01-31 20:29:51 · 1 answers · asked by Anonymous

2007-01-31 19:43:34 · 14 answers · asked by Anonymous

2007-01-31 19:34:04 · 18 answers · asked by farhana p 1

"A certain automobile manufacturer claims that their deluxe sportscar will accelerate uniformly from rest to 87 miles per hour (mph) in 8 seconds. Determine the acceleration of the car, and find the distance traveled in 8 seconds. Leave your answer in miles and hours."

2007-01-31 19:33:37 · 2 answers · asked by D-Man! 1

a container containing an unknown liquid X. The marking on the container is in cm³. The density of the liquid is known to be 1.6 g/cm³. What is the mass of the liquid in the container?

2007-01-31 19:24:28 · 1 answers · asked by Jason 1

A. 0.648 N
B. 6.48 N
C. 64.8 N
D. 648 N

2007-01-31 19:23:03 · 3 answers · asked by Jason 1

Question: a charge of q = +7.50 uC is located in an electrical field. The x and y components of the electric field are E(x) = 6.00 x 10^3 N/C and E(y) = 8.00 x 10^3 N/C, respectively. (a) What is the magnitude of the force on the charge? (b) Determine the angle that the force makes with the +x axis.

My Approach:
I have the answers to this problem; however, part (b) is where i am not getting the answer. I have theta = 53.13 degrees...my teacher marked it wrong for equalling 53 degrees. so what are his intentions? i asked him, but i cant understand his mumbling lol. anyways, i ask you people!

2007-01-31 18:13:40 · 3 answers · asked by Anonymous

2007-01-31 18:10:27 · 7 answers · asked by ARBEN A 1

Question: a plate carries a charge of -3.0 uC, while a rod carries a charge of +2.0 uC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?

My Approach:

N= q/e = -2.0e-6/-1.6e-19 = 1.25e13 electrons

What is the other part asking? does it include the -3.0 uC? That's where im stuck...my prof marked me wrong for having -2.0e-6 (without the units) - so am i technically right if i have the units attached to -2.0e-6 C? Thanks...

2007-01-31 18:04:51 · 3 answers · asked by Anonymous

I think it's half full, right?

Assume the container's walls have negligable mass.

2007-01-31 17:31:39 · 3 answers · asked by anonymous 4

2007-01-31 16:51:39 · 3 answers · asked by chilli bean 1

2007-01-31 16:45:05 · 7 answers · asked by Janelle M 1

I am having trouble with this question in my homework:

Derive an expression to estimate the work required to inflate a common balloon. List all simplifying assumptions

2007-01-31 16:02:29 · 2 answers · asked by Anonymous

first learn these basics in physics

2007-01-31 15:36:00 · 12 answers · asked by Anonymous

2007-01-31 15:15:49 · 7 answers · asked by Anonymous

Here's the problem:

Object is rolling on surface with minimal friction comes to rest after 198m. Initial velocity is 3.4 m/s^2. If acceleration is constant, what is the acceleration?

What is the formula that gives us acceleration if we only know distance and initial velocity? I can't even find out which one.

So, if you could tell me what formula would work at least, or even go through the problem step by step, that would help. thanks!

2007-01-31 15:12:15 · 5 answers · asked by antheia 4

2007-01-31 15:10:46 · 2 answers · asked by Anonymous

Thanks for detailed answer...Tom Science 4

2007-01-31 15:10:21 · 8 answers · asked by Anonymous

2007-01-31 14:35:32 · 12 answers · asked by colin050659 6

an object is thrown upward at an angle x above the ground, eventually returning to earth.
a) is there any place along the trajectory where the velocity and acceleration are perpendicular?
b)Is there any place where the velocity and acceleration are parallel? If so, where? In each case, explain.
**I think that i need to find the acc. and velocity. but how do i compares in term of perpendicular and parallel?

2007-01-31 14:31:23 · 2 answers · asked by Anonymous

what is the relationship between the quantum theory and black holes

2007-01-31 14:23:14 · 3 answers · asked by rubyred 1

After I was flying a remote control airplane, I had a picnic with my friends. One of them brought honey and this idea popped into my head.

Also, if gravity is the weakest of the elementary forces, why do things fall to earth instead of being reflected by the charge in aerial particles or the ionosphere? I know this is more of a fluid dynamics question, but I'm wondering why does it matter how many atoms there are to get in the way of another body. Shouldn't some of the atoms get trapped in between the descending body and the earth so that there's a point where the object just floats above the earth, or is air pressure what we call the resistance applied by the atmosphere's atoms which are repelling the falling object (then, as the object approaches the ground, the imperfect positioning of the air's atoms results in it getting squished out to the side from between the falling object and the ground)?

2007-01-31 14:22:16 · 4 answers · asked by Mikey C 5