Physics - September 2006

A certain automobile can decelerate at |a1| = 1.7 m/s2. Traveling at a constant v1 = 30 m/s, this car comes up behind a car traveling at a constant v2 = 5 m/s

How close to the slower car can the driver of the faster car come before applying his brakes and still avoid a collision?
D =______ m

Unfortunately, the driver of the faster car does not apply his brakes until he is just 30 m behind the slower car! Call the instant at which he applies the brakes t = 0.

At what time does the inevitable collision of the two cars occur?
t collision = ___s

2006-09-06 10:56:38 · 4 answers · asked by hardik p 1

2006-09-06 10:56:02 · 3 answers · asked by jessi 1

2006-09-06 10:49:57 · 7 answers · asked by seyi16914 1

ok how would i type this into my calculator:

2.5 x 10^9 ??? Would i just put 2.5 times 10 and then the EE

and how would i put this in???

10^7 ..... would i keep the 10 or change it to one???? can you guys give me examples so i can understand thank u!

2006-09-06 10:46:31 · 4 answers · asked by Twilight Is Love 1

2006-09-06 10:43:13 · 6 answers · asked by seyi16914 1

A car traveling at a speed of vo = 57 m/s stops smoothly (that is, its deceleration is constant) over a distance of d = 110 m.

a) After the car has gone 1/3 of the stopping distance, what is its speed?

v1/3 =_____m/s
b) If the car had been going 10 m/s but had stopped in the same d = 110 m distance, what would its acceleration have been?

a(vo = 10m/s) =______ m/s2

2006-09-06 10:36:37 · 2 answers · asked by hardik p 1

2006-09-06 10:33:52 · 15 answers · asked by seyi16914 1

2006-09-06 10:02:47 · 5 answers · asked by jorgeduran17000 1

2006-09-06 09:45:16 · 15 answers · asked by bo nidle 4

2006-09-06 09:19:47 · 4 answers · asked by Peter T 1

2006-09-06 09:03:07 · 14 answers · asked by soldout 1

What material works best to sheild one feild from another, and how thin can it be?

2006-09-06 09:02:36 · 1 answers · asked by tiuredlion 2

Do you think ceartin symbols can interact with elements of physics. If so which ones and why I think that they do because everything that can formed must be.

2006-09-06 08:56:10 · 3 answers · asked by Thin King 3

So life is sequence, energy is found in all living things. Light uses energy and the expansion of the universe is maybe disrupted by black holes that light cannot escape. So if energy is vaccumed in and the essence of life is the energy that has superceeded us. Is light the shadow of energy represented by the same sequence or one thats been vaccumed and rearraged into a chaotic representation of the expanding universe pushing our expelled energy farther away?

2006-09-06 08:53:32 · 4 answers · asked by Thin King 3

2006-09-06 08:53:10 · 15 answers · asked by sytai 2

2006-09-06 07:44:40 · 4 answers · asked by Andy S 6

2006-09-06 07:23:07 · 10 answers · asked by Anonymous

1) If my body is made up of atoms that are blinking in and out of existence, where am I when my body isn't here. 2) If you can not be what you can observe, then I can't be my body or my mind because I can observe them. So am I the background on which everything( the frequency world) is happening?

2006-09-06 06:52:06 · 17 answers · asked by Michael K 2

2006-09-06 06:24:57 · 7 answers · asked by ashley m 1

F (in neutons) =

2006-09-06 05:56:05 · 3 answers · asked by Dauntless Red Hue 1

has it been speeding up?

2006-09-06 05:54:19 · 2 answers · asked by ỉη ץ٥ڵ 5

Do you think loads of open egg cartons stuck on the walls & ceiling, their points inwards, would be a moderatly succesful alternative to that expensive stuff to diminish unwanted echoes etc.? Any-one tried it before we start collecting hundreds of the things, for a small band recording room.

2006-09-06 05:48:52 · 13 answers · asked by Bob the Boat 6

BAsically what is the math behind the real size of an object, the distance to the lens, the focal length(35mm etc) and the size of the object when printed?

2006-09-06 05:48:25 · 1 answers · asked by lerouge 2

We 'see' objects because they either 'emit' or 'reflect' light. Lets say there are two balls of equal size one 10 feet away another 30 feet away. Both the balls reflect light, what information on the "photons" (or waves) say that this light was reflected from which object and how does it tell the retina how far the object is?

2006-09-06 05:47:03 · 4 answers · asked by Anonymous

A closed room as all the 6 walls as mirrors. A person standing inside,
shines a torch, then switches it off. Will the light continue to bounce off the mirrors ? ie. will the room continue to be lit ?

2006-09-06 05:39:00 · 7 answers · asked by Samvit 1

2006-09-06 05:33:40 · 3 answers · asked by goring 6

he is involved with science

2006-09-06 05:28:14 · 6 answers · asked by Anonymous

2006-09-06 05:19:37 · 7 answers · asked by goring 6

And what whould be an explanation when special relativity is generalized?

2006-09-06 05:14:15 · 3 answers · asked by goring 6

A person is standing in a room. The ceiling & 2 adjacent walls are mirrors(plane). How many images of the person is/are formed ?

2006-09-06 05:14:02 · 7 answers · asked by Samvit 1