Physics - September 2006

make the foul shot? the horizontal distances are d1 = 1.0 ft and d2 = 14fr, and the heights are h1 = 7.0 ft and h2 = 10ft.

2006-09-16 17:46:15 · 1 answers · asked by gods1princesschanel 1

i've a question on air pressure. The question goes like this:
when the piston of a syringe is pull out the water get into the barrel, but what is the relationship between air pressure with this nasty question. I need help, my science teacher will be asking me about this question TOMMOROW!!

2006-09-16 17:31:00 · 6 answers · asked by dyna@cute 1

At first observation, the airplance is at distance d1 = 360m from the station and at ange θ1 = 40degrees above the horizon. The airplane is tracked though an angular change Δθ = 123 in the vertical east-west plane; itas distance is than d2 = 790 m. Find the (a) magnitude and (b) directoin of the airplane's displacement during this period.

2006-09-16 17:24:38 · 4 answers · asked by gods1princesschanel 1

straight river with a width of 6.4km and a current of 3.2 km/h. Let i piont directly across the river and j point directly downstream. It she rows in a straight position, (a) at what angle to i must she point the boat and (b) how long will she take? (c) How long will she take if instead, she rows 3.2km up the river and then back to her starting point? (e) At what angle to i should she point the boat if she wants to cross the river in the shortest possible time? (f) How long is that shortest time?

2006-09-16 17:16:21 · 1 answers · asked by gods1princesschanel 1

the x axis. At the instant particle A passes the y axis, particle B leaves the origin with zero initial speed and constant accleration a of magnitude 0.40 m/s2. What angle θ between a and the positive direction of the y axis would result in a collision?

2006-09-16 16:53:48 · 1 answers · asked by gods1princesschanel 1

about the zigzag path of lightning

2006-09-16 16:00:42 · 9 answers · asked by Anonymous

how long would it take to travel 12 inches

2006-09-16 15:47:45 · 9 answers · asked by Anonymous

A cat rides a merr-go-round tuning with uniform circular motion. At time t1 = 2.00s, the cat's velocity is v1 = (3.00 m/s)i + (4.00 m/s)j, measured on a horizontal xy coordinate system. At t2 = 5.00s, its velocity is v2 = (-3.00m/s)i + (-4.00m/s)j. What are (a) the magnitude of the cat's centeripetal acceleration and (b) the cat's average acceleration during the time interval t2 -t1?

2006-09-16 15:46:56 · 3 answers · asked by gods1princesschanel 1

2006-09-16 15:40:27 · 10 answers · asked by flguy48tc 3

2006-09-16 15:30:22 · 15 answers · asked by Anonymous

I dont want u to do it for me but tell me the steps once and ill get it and never ask again

this is my first time asking a homework question btw

So my teacher wants me to convert to the answer into meters,kilogram, seconds format....meaning she wants the answers in those measurements

the problem is i dno how to convert two things like this

>>>>>> 17.24km/hr <<<<<<<

so its suppose to come out to be m/s

i only know how to do simple ones like 750 mm to meters = easy

but two step problems i dno how to do

please help me

thanks

2006-09-16 15:25:40 · 7 answers · asked by Anonymous

by an estimate a liter of air weighs 1.25 grams, and a liter of helium is 0.18. So basically anything under a gram of weight will float. So thats to say if you were to put a vacuum in a liter bottle it would float even better since a vacuum has zero grams of weight. But what I am most curious about is if you put a vacuum in a bottle and a helium in another bottle wouldnt the vacuum bottle collapse? And why is it that the helium bottle wont? The range between 0.18 and 0.00 is not much so why such an extreme difference?

2006-09-16 15:06:00 · 5 answers · asked by SRK 1

if the assumption is that gravitational potential at the surface of the earth to be zero, can we use the equation F=GMm/(r)^2?? Whats the meaning of the assumption? we use Energy=mgh instead??? Eg A mass of 2kg is at poiunt p, a height 3m above the surface of earth, to find the gravitational field strength at p what do we do?????????

2006-09-16 15:03:44 · 6 answers · asked by Big bird 1

It means going against or faster than the time. How is it scientifically possible?

2006-09-16 14:35:44 · 18 answers · asked by Anonymous

2006-09-16 13:38:47 · 7 answers · asked by ChrisAds 2

How can all of the motion on the space station (astronauts moving, the robotic arm, etc...) not cause the ISS to move also? Wouldn't Newton's second law be acting up all the time (or is it the first law?)?

2006-09-16 13:22:52 · 7 answers · asked by perk 2

Superman is at rest after the throw. Taking physics into acct, what would be his recoil velocity?


Please explain to me how u came up with this answer....I really need to understand it.

2006-09-16 13:07:20 · 6 answers · asked by wildbutterflychick 2

frieght car that is initially at rest, how fast do the 2 coast after they couple together?

What is the answer and how did u figure out the answer?????

2006-09-16 13:04:51 · 3 answers · asked by wildbutterflychick 2

They all weigh the same on earth and are equally strong. The game begins.Describe the motion of the astronauts as the game procedes. How long will the game last?

2006-09-16 12:59:27 · 7 answers · asked by wildbutterflychick 2

Could you help me find this out? I know about the whole bath story.. but I need help with just basics of the story. Thank you so much!

2006-09-16 12:58:39 · 6 answers · asked by pink_cheer_babe13 1

2006-09-16 12:33:53 · 7 answers · asked by Javier Macias 1

2006-09-16 12:18:01 · 5 answers · asked by krazy_but_kewl 1

2006-09-16 12:15:17 · 4 answers · asked by krazy_but_kewl 1

2006-09-16 12:15:00 · 3 answers · asked by Anonymous

As we all know A-bombs and Hydrogen bombs are mighty powerfull and if you could harness all that energy gradually, you could power a lot of homes, would there be any feasable way of harnessing that energy by exploding the nuclear bomb inside a huge spherical container hence heating it for a very very long time, if the sphere was big enough and heatproof enough i dont think you would need to be worried about the radiation. How big and strong would the sphere need to be?

2006-09-16 11:20:33 · 12 answers · asked by Paul B 1

When asked this question, Richard Feynman replied that he has doctor's order not to discuss it.

So, no heart troble intended here, you can be as casual as you like -- Yahoo Answer is not a heavy weight discussion forum!

2006-09-16 11:00:42 · 7 answers · asked by oracle 5

I would be grateful to show me how to work this out!

2006-09-16 10:37:31 · 2 answers · asked by cornishmaid 4

Let's suppose the electric field in some region is found to be E=k(r^3)r^-----> "r-hat", in spherical coordinates where k is a constant. How do you find the charge density, p, and the total charge containted in a sphere of radius R, centered at the origin?

2006-09-16 10:35:38 · 4 answers · asked by chica1012 2

Here is the question in detail: Three charges form an equilateral triangle of side a. At one vertex is a charge +2q; at the other two vertices are charges -q. The triangle is oriented with the charge 2q on the positive x axis and both charges -q on the y axis. a) Find an expression for the electric field on the x axis, in the approximation x>>a. b) give an expression for the magnitude of the triangle's dipole moment. Answers: a) E=2(3)^½kqa/x^3 i, E and i are vectors b) p=(3)^½qa

2006-09-16 10:27:36 · 1 answers · asked by thomthum2000 2

please tell me everything there is (or everything you know) about eintien's theory of relativity. also, why is it when reaching the speed of light time slows down, but when you go faster than the speed of light time is reversed? im very interested in this topic so please help.

2006-09-16 09:26:56 · 4 answers · asked by Anonymous