Science & Mathematics - 28 June 2007

1. a train starts from rest and moves with a constant acceleration of 2 m per second square for half min. brakes r applied and the train comes to rest in 1 min.find a)total ditance moved by the train
b)the maximum speed attaines by the train

2.a stone is thrown vertically upwards. on its way up it passes point a with speed v and point b 3m higher than a speed v/2. calc. the speed v and maximum height reached by the stone above point b
3.a juggler juggles 5 balls with 2 hands.each ball rises 2 m above her hands. approx how many times per minute does each hand toss a ball.

2007-06-28 23:56:41 · 2 answers · asked by shubh 1 in Physics

2007-06-28 23:42:59 · 6 answers · asked by saint 1 in Physics

2007-06-28 23:36:29 · 5 answers · asked by sweety 1 in Biology

If time slows down for a person in a spacecraft moving quickly away from Earth, does it also slow down for a person staying still while the Earth moves quickly away from them?

2007-06-28 23:28:38 · 9 answers · asked by colin m 1 in Physics

An extreme skier, starting from rest, coasts down a mountain that makes an angle 25.0° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.200. She coasts for a distance of 10.2 m before coming to the edge of a cliff. Without slowing down, she skis off the cliff and lands downhill at a point whose vertical distance is 4.10 m below the edge. How fast is she going just before she lands?

2007-06-28 23:27:35 · 3 answers · asked by M&M 2 in Physics

Okay we learned in primary school that
"As freshwater goes from ice to liquid, from liquid to ice or from liquid to gas, it undergoes an obvious change of state"
Can any of you Global warming scientist educate me on the status of world Glaciers before it turned into Glaciers and what caused it.

2007-06-28 23:20:34 · 5 answers · asked by Richard d 1 in Earth Sciences & Geology

2007-06-28 23:18:48 · 11 answers · asked by Anonymous in Weather

2007-06-28 23:03:27 · 4 answers · asked by kelleygaither2000 1 in Biology

2007-06-28 23:03:15 · 17 answers · asked by Anonymous in Physics

Mimosa is grass family

2007-06-28 22:22:37 · 7 answers · asked by Anonymous in Botany

Your sister,
Ginger

2007-06-28 22:21:10 · 5 answers · asked by Anonymous in Physics

...when is it coming?

I've been waiting for what seems like decades for it. Is it peeping its head around the corner nowadays?

2007-06-28 22:12:36 · 8 answers · asked by Anonymous in Engineering

2007-06-28 22:07:12 · 11 answers · asked by K B 1 in Other - Science

Answer these as quick as u can:
1)15*5
2)9-4
3)71-5
4)51/17(divide)
5)3*3*3*3
6)5/2*2/2*2
7)0.5*0.5
8)$6-£2(currency rate shouldn't matter)
9)14632*0
10)0/1298
How many do you think you got right???

2007-06-28 21:54:50 · 7 answers · asked by SIR TJM 5 in Mathematics

Not only the names of sect but also breed e.g Dogs (Poodle, Dalmation, Alsation), Cats (Persian, Tiger, Lion), Snake (Rattle snake, Anaconda, Cobra).
Different types of Fish, Reptiles and also historical animals like Rex. How did all the living animals got their names? who kept them?

2007-06-28 21:47:42 · 5 answers · asked by samina m 3 in Zoology

For example: 2+3 (2 add 3 is...), 40:5 (forty divided by 5 is...)

2007-06-28 21:41:38 · 9 answers · asked by vogue 3 in Mathematics

2007-06-28 21:26:13 · 5 answers · asked by Anonymous in Mathematics

Complete biosphere is under control by a administrator who manages things & interferes as and when needed, gives advantages characters & also removes some advantages & also disadvantages characters to balance the show, example :- look at our primates who have good ears better then us good nose better than us, but we humans have good intelligences with lesser ear & nose. I was wondering why are these lost when they don't have any disadvantage, if they were acquired only through evolution & lost by only evolution. I think there is no good reason for them to be lost, I suppose with better ears & nose we could have been better hunters along with good inelegance, Is this is planned event to limits the dominance of any species. Probably one can get many example like this in biosphere.

2007-06-28 21:26:10 · 9 answers · asked by Dr Umesh Bilagi 2 in Biology

X } -18 -13 1 11 13
P(X) } 3/10 1/5 1/10 3/10 _?__

(THis is supposed to be a chart where you have to fill in)

THe directions are:
Given the following sampling distribution:(above)
What is the mean of this sampling distribution?
(Please show every step when completing this problem)

2007-06-28 21:20:13 · 1 answers · asked by uhdiamond 1 in Mathematics

All I am tell you now is
It lives in a framous river
If you came back later I will add more about this animal

2007-06-28 21:16:35 · 7 answers · asked by jobees 6 in Zoology

what is worse? A extreme flood like in eastern victoria or extreme drought?

2007-06-28 21:07:49 · 3 answers · asked by chezza909 1 in Weather

2007-06-28 21:02:39 · 3 answers · asked by Mike 3 in Medicine

So how can I make drawings of my ideas without having good artistic ability?

2007-06-28 20:47:50 · 3 answers · asked by worried person 1 in Engineering

2007-06-28 20:47:24 · 4 answers · asked by adelaine 1 in Earth Sciences & Geology

Few days back i got a strange dream. People crying, news channels having head lines WW3 is here. Blood every where.
Climatic conditions are changing masively, countries fighting each other...

2007-06-28 20:37:26 · 23 answers · asked by ithunderhyderabad 2 in Geography

vivid dreams?

2007-06-28 20:34:21 · 3 answers · asked by Anonymous in Biology

Patients surgery done:
Mitral valve replacement in Feb 2000
Post operative drugs-Tab acitrom 5mg, ecosprin 150 mg OD.
Present history:
Fever from 8/05/2007 at irregular time, mostly in the evenings.
Hospitalised on 11-05-07 at hyderabad for two days.
Admitted at chennai on 18-05-07.Since he was operated in the same hospital
Biochemistry results done at the hospital
LEPTO SPORIASIS - negative
Discharged on 31-05-07 and advised to take antipyretics in case of fever.
Investigation in a hospital at chennai
Brucella agglutination - negative
Mantoux - No induration
HIV (ELISA) - Negative
CT chest - Shows normal study
Investigation done at Haemotology centre
SCAN
Inspite of various investigations sited above the cause of fever is unknown for the last 6 weeks.the patient has no other complaint except fever occuring once or twice daily.
We would be grateful for an expert opinion and course of treatment or suggest a specialist in and around chennai,Tamilnadu ,India.Request immeadiate response

2007-06-28 20:30:49 · 7 answers · asked by Arthur 1 in Medicine

2007-06-28 20:29:24 · 13 answers · asked by Anonymous in Astronomy & Space

2007-06-28 20:08:51 · 14 answers · asked by gunalan g 1 in Earth Sciences & Geology

i need it for my geography project.An brief article on it would be more helpful.

2007-06-28 20:04:39 · 2 answers · asked by BuddyGuy 2 in Earth Sciences & Geology