Physics - July 2006

the driver of a car wishes to pass a truck that is travelling at a constant speed of 20.0 m/s (about 45 mi/h). Initially, the car is also travelling at 20.0 m/s and its front bumper is 24.0m behind the truck's rear bumper. The car accelerates at a constant 0.600 m/s/s, then pulls back into the truck's lane when the rear of the car is 26.0 m ahead of the front of the truck. The car is 4.5m long and the truck is 21.0m long. A.) How much time is required for the car to pass the truck? B.) what distance does the car travel during this time? c.) what is the final speed of the car?

2006-07-30 20:04:08 · 3 answers · asked by just_askin' 1

two stunt drivers drive directly toward each other. At time t=0 the two cars are a distance D apart, car 1 is at rest, and car 2 is moving to the left with speed V sub 0. Car 1 begins to move at t=0, speeding up with a constant acceleration a. Car 2 continues to move with constant velocity. A.) At what time do the two cars collide? B.) Find the speed of car 1 just before it collides with car 2.

2006-07-30 19:57:46 · 3 answers · asked by just_askin' 1

2006-07-30 19:04:27 · 6 answers · asked by electroarturo 1

Photons not having mass

2006-07-30 19:00:37 · 8 answers · asked by Anonymous

A new bulb glows its expected span of life. After its full use the bulb is not broken and nothing entered or came out of it except light. I am just curious to know whether weight of the new bulb and the used bulb is the same or diffrent.

2006-07-30 18:33:55 · 9 answers · asked by bainsal 2

Say I had a stick that was long enough to touch one star and I moved it to touch the next one I was looking at would the stick not have to move faster then light?

2006-07-30 17:59:51 · 7 answers · asked by drgns77 2

2006-07-30 17:41:21 · 16 answers · asked by El Nueve 2

2006-07-30 17:05:17 · 4 answers · asked by rahul 1

who own and run the internet

2006-07-30 16:51:18 · 11 answers · asked by raheel i 1

I wish to write physics and maths articles and am looking for Some software that allows all maths and physics symbols to be inserted with ease in document. Thanks

2006-07-30 15:51:37 · 4 answers · asked by Anonymous

On most automobile passenger-side and rearview mirrors, a warning is printed: “Objects in mirror are closer than they appear.” Why this and what is makes the difference? Hint: the mirrors are convex mirrors

2006-07-30 15:27:01 · 5 answers · asked by lady_bugs_2000 2

The speed of light in a certain transparent material is 41.3% of the speed of light in a vacuum. What is the index of refraction of the material? (Can you identify the material?)

2006-07-30 15:25:23 · 2 answers · asked by lady_bugs_2000 2

2006-07-30 15:23:18 · 11 answers · asked by natanan_56 2

Accoring to relativity no mass can be made to move at that speed?

2006-07-30 15:14:22 · 4 answers · asked by goring 6

no dumb answers

ur weightless so i would do flips and spins then i would take of my shirt and pants and my handy dandy tape and duck tape me 2 de ceiling

2006-07-30 15:11:36 · 11 answers · asked by Anonymous

please...your time should be in format of an hour, minute and secound. I realize it is after 1:05 but i need exact time

2006-07-30 14:00:06 · 7 answers · asked by tak_np 1

You know...like when there's drops of dew on the grass and it's all shiny and from different angles the drop will look different colors, but always shiny...why is that?
*I'm not really sure if this is a physics question or not, but it's still science...

2006-07-30 13:26:22 · 8 answers · asked by Mariah 4

Ok, I need a person who's really good at physics. If you don't know please don't answer. Ok, for a concave lens there are three light rays that can pass through.
1) Any ray passing through optical centre continues without refraction
2) Any ray travelling parallel to PA (principle axis) is reflected "in line" with the PF (principal focus or focal point)
3) Any ray travelling towards the SF (secondary focal point) refracts parallel to the PA

My question is why doesn't the light ray ever go through or pass the PF?...only the extended light ray does.

2006-07-30 13:16:46 · 3 answers · asked by A 2

A gas and some powder are sealed in a hollow cylinder of internal volume 50 cubic cm at a pressure of 1000kPa. This volume was reduced to 20 cubic cm at a constant temperature, causing the pressure to rise to 400 kPa. Use these results to calculate the volume of the powder.

2006-07-30 12:59:05 · 8 answers · asked by surani_ud 3

If you look into the front side of a shiny spoon, you will see an inverted image of yourself. If you look into the back side of the spoon your image is upright. Why is this?

2006-07-30 12:33:23 · 5 answers · asked by lady_bugs_2000 2

how does it work?

2006-07-30 12:29:15 · 2 answers · asked by Naty:Co-Emperor Has Returned 6

2006-07-30 12:25:32 · 11 answers · asked by the.chosen.one 3

wat would u do cause its an half hour weightlessness

NO JUMPING ANSWERS

2006-07-30 11:45:40 · 16 answers · asked by Anonymous

2006-07-30 11:35:10 · 4 answers · asked by Anonymous

music theory and other subjects? I did google/yahoo search but did not find the actual letters themselves. found books for sale but was hoping to find the text of the letters free online somewhere.

2006-07-30 11:08:26 · 1 answers · asked by Anonymous

Yes. I know that equilibrium is a state of balance and precarious means "affording no ease or reassurance." It would really help if someone who is familiar with the exact term has some input. Thanks.

2006-07-30 10:16:48 · 2 answers · asked by mrpoolny 2

What are two examples of practical applications of polarization?

2006-07-30 10:02:47 · 6 answers · asked by lady_bugs_2000 2

A golfer wishes to chip a shot into a hole 40 m away on flat level ground. If the ball sails off at 40°, what speed must it have initially? Ignore aerodynamic effects.

2006-07-30 09:50:48 · 6 answers · asked by Jessie L 2

a)What is the momentum of a 27.0 g sparrow flying with a speed of 13 m/s?
(b) What will be its momentum 12 s later if a constant 2.0 10-2N force due to air resistance acts on it?

i got part a..i'm looking for part b..thanks for your help

2006-07-30 09:47:18 · 3 answers · asked by Anonymous

2006-07-30 09:35:52 · 28 answers · asked by Frank S 3