Physics - September 2006

The citizens of Paris were terrified during World War I when they were suddenly bombarded with shells fired from a long-range gun known as Big Bertha. The barrel of the gun was 36.6 m long and it had a muzzle speed of 1.41 km/s. When the gun's angle of elevation was set to 45°, what would be the range? For the purposes of solving this problem, neglect air resistance.

2006-09-21 15:34:50 · 4 answers · asked by Anonymous

A 3-kg block, starting from rest, slides down a frictionless incline of length 1.2 m. When it arrives at the bottom of the incline, its speed is vf. At what distance from the top of the incline is the speed of the block ?

2006-09-21 15:33:11 · 2 answers · asked by Anonymous

Solve the initial value problem and determine how the interval in which the solution exists depends on the initial value C.

y' = -4t / y y(0) = C

Ok, i know how to solve this problem. Its just the other parts of the question that i dont get.

1. "determine how the interval on which the solution exists depends on the initial value C"
How do I find the interval??
How does the interval rely on the initial value C??

please help.

2006-09-21 15:19:00 · 1 answers · asked by khaoticwarchild 3

I know it has something to do with like positive neutrons or something. I just forgot.

2006-09-21 15:18:41 · 6 answers · asked by opendoor2011 1

A helicopter is flying horizontally at 7.7 m/s and an altitude of 16 m when a package of emergency medical supplies is ejected horizontally backward with a speed of 13 m/s relative to the helicopter. Ignoring air resistance, what is the horizontal distance between the package and the helicopter when the package hits the ground?

2006-09-21 15:12:21 · 3 answers · asked by websterpirate1 1

2006-09-21 15:09:07 · 16 answers · asked by stevenpdk2000 1

2006-09-21 15:08:35 · 2 answers · asked by jolsonut 1

I have been told the spin has nothing to do with gravity so what if the spinning stopped. To quote a song "The end of the world as we know it" would it in fact be the end? Could life survive this?

2006-09-21 14:55:37 · 11 answers · asked by momsapplepeye 6

facts sbout babyoil

2006-09-21 14:36:21 · 6 answers · asked by loser butt 1

Does his head explode like The Simpsons?

2006-09-21 14:27:10 · 14 answers · asked by Anonymous

i have wachted THE LAKE HOUSE but i don't understand about the logic hehind it. Or is it logic? Can we really connect to the past world?????????????????/

2006-09-21 14:13:01 · 6 answers · asked by LOTS OF QS 1

2006-09-21 13:53:40 · 10 answers · asked by MzJade 1

when can i use sin or cos in the work=force x distance x sin/cos(B)??
in the equation work = Fdcos/sin(B), when will i use the sine and the cosine? what type of situations??? please give an example. or just tell me when to use the sine or the cosine. it the sine work against gravity? i am confused.

2006-09-21 13:03:09 · 2 answers · asked by rod_dollente 5

i know theoridically speaking nothing with mass or whatever cannot go faster then speed of light. But what would happen if we could go lets say 10x the speed of light? will it result in time travel? will anyone be able to survive?

2006-09-21 12:57:23 · 19 answers · asked by Anonymous

in the equation work = Fdcos/sin(B), when will i use the sine and the cosine? what tpye of situations???

2006-09-21 12:32:16 · 3 answers · asked by rod_dollente 5

2006-09-21 12:18:46 · 7 answers · asked by The Question Man 2

2006-09-21 12:13:31 · 3 answers · asked by The Question Man 2

By excess I mean after it has gone and lost some zap through the some wiring, and I do know it depends on how far it travels.

2006-09-21 12:10:01 · 4 answers · asked by The Question Man 2

2006-09-21 11:56:03 · 3 answers · asked by The Question Man 2

Uses of Thermistor in the environment or real life

2006-09-21 11:39:42 · 4 answers · asked by MJ 2

if you say it woud the same or be better, thats exactly my point

2006-09-21 11:24:01 · 10 answers · asked by hondacobra 2

2006-09-21 11:15:00 · 10 answers · asked by S--slick 4

2006-09-21 11:11:17 · 2 answers · asked by Anonymous

what if he was one of us and a hacker stole his identity or a mexican used his Social Security No.?
what if he was gay and we were forced to lynch him?
what would the implications of this be on the universe

2006-09-21 11:10:00 · 12 answers · asked by hondacobra 2

Ok, i got a HUGE test tomarrow in science, chapter exam... huge part of my grade... and unfortionatly i waited till today to study for it. NEED HELP!!! How do I know wat the charge that an atom (Calcium ,Neon, Oxygen) will have if the atom becomes stable? Another question is wat are the "number of Ocupied Energy Levels" in an atom? I will proble have more questions as i continue studing, but that is all i need for now... PLEASE ANCER!!! thanks!!!

2006-09-21 10:51:18 · 2 answers · asked by Benjamin H 1

You know how there's the three dimensions of height, width, and depth, and the 4th dimension of time, as well as numerous other theories? Well, I have a theory about the definition of another dimension, but in order to make that theory legitimate, I must know if the term "dimension" only applies to location, or if it is more flexible than that. Just so you know, the dimension that my theory is about is more based on quality than location, if that makes any sense to you. I cannot go into any more detail with my theory, for I'm afraid that if I do, some jerk might steal my theory by claiming it as their own, and take all the credit. Also, in order to number my dimension with a number that hasn't already been taken (assuming that it is legitimate), I must know how many different dimensions (theoretical or not) have been found/discussed. Note that I am a philosopher, not an actual physics professor or anything like that, so keep your answer understandable, okay? Thanks.

2006-09-21 10:34:30 · 6 answers · asked by rokkon 3

2006-09-21 10:34:05 · 3 answers · asked by PlumbersTape1 1

Couple a microphone be used with a really huge dish antenna? How far away could a microphone with a 12 foot dish antenna clearly hear a conversation?

2006-09-21 09:05:24 · 4 answers · asked by Anonymous

Isnt the energy that it took to assemble the mass together equivalent to the energy to break it appart?and when it breaks apart teh components of the mass will fly at the speed of light?
so if power is given to a mass to move at the speed of light it would take along time to disassemble at that point the mass structure wouldnt it break apart with the energy of mc^2.?

2006-09-21 08:48:46 · 7 answers · asked by goring 6

Ie. All the heat around you and in you suddenly transferred to one part of your body?

I also heard that theoretically you could walk through walls and have all the air the room placed into one corner(vaccuming the rest of the room).

have you heard of any other statistically possible scenerios that could happen but never do?

2006-09-21 08:43:47 · 13 answers · asked by Ilooklikemyavatar..exactly 3