All categories - 9 November 2006

1.A car's velocity as a function of time is given by Vsubscript of x(t)=alpha+beta*t^2,where alpha=3m/s & beta=0.100m/s^3.a.)calculate the average acceleration for the time interval t= 0 to t=5 sec.b.)calculate the instanteneous acceleration for i.)t=0;ii.)t=5 sec

2.A dog running in an open field has components of velocity Vsubscript x=2.6 m/s and Vsubscript y=-1.8 m/s at tsubscript 1 =10 s .For the time interval from t subscript 1 =10 s to t subscript 2 = 20 s,the average acceleration of the dog has magnitude 0.45 m/s^2 and the direction 31 degree measured from the +x-axis toward + y-axis. At tsubscript 2 =20 s, a.)What are the x and y components of the dog's velocity? b.)what are the magnitude and direction of the dog's velocity

3. Jillian angrily throws her engagement ring staright up from the roof of a building,12 m above the ground, with an initial speed of 5 m/s.you may ignore air resistance.For the motion from herhand to the ground,what are the magnitude & direction of a.)the average velocity of the ring? b.)the average acceletarion of the ring? c.)in how many seconds after being thrown does the ring strike the ground? d.) what is the speed of the ring just before it strikes the ground?

2006-11-09 00:01:43 · 2 answers · asked by khenzkey_wawa08 1 in Physics

2006-11-09 00:01:28 · 15 answers · asked by Daniela S 1 in Television

I always wished I could fly. Everytime I got the wishbone from a roast chicken - for about five years I wished I was Peter Pan. Funny eh? What about you?

2006-11-09 00:01:15 · 26 answers · asked by Anonymous in Jokes & Riddles

Has anyone ever done the Master Cleanser diet. Its suppose to clear out all the toxins in ones body. I have heard a lot about it, and its highly recommend by my personal trainer. But, I just want some more info. n im tooo lazy to read the book. Anyone have any helpful info. Thanks

2006-11-09 00:01:03 · 29 answers · asked by Confused4life 2 in Diet & Fitness

I do detailed work that takes many hours and I'm wondering if I'm better off painting with an easel or a drafting table? My main concern here being my posture and developing back pain.

2006-11-09 00:00:54 · 4 answers · asked by shagg_woo 2 in Painting

ever since i moved to this house the bathtub has this yellowish color. i've tried clorox,simplegreeen,mrclean.etc nothing works. i want a product that works good on the bathtub and another good for the tile to get rid of soap scum or what ever that build up is.

2006-11-09 00:00:39 · 8 answers · asked by Anonymous in Maintenance & Repairs

seeing partially nude women seems to do the trick, ie scantily clad bikini women, would you agree?

2006-11-09 00:00:32 · 13 answers · asked by Anonymous in Men's Health

2006-11-09 00:00:28 · 11 answers · asked by crap_giz 1 in Military

Does anyone know how much is the train from Luton / Luton Airport Parkway into London return? Its gonna be this Saturday, day return. I just wanna check cos theres gonna be loads of us so could get expensive. National Rail Website tells me the prices start at £55.00 single. This seems to be obvious garbage to me. It also says from Telford to London return is £220-£1050! Yet I know for a fact that this is actually about £35. (This follows on from yesterdays helpful answers about Park & Ride)

2006-11-09 00:00:26 · 2 answers · asked by RoyF 2 in Commuting

I can actually get to the roof. I have recently moved in to the house. Is there a way of knowing where the joists are above the plasterboard?

2006-11-09 00:00:06 · 8 answers · asked by Anonymous in Maintenance & Repairs

2006-11-09 00:00:01 · 4 answers · asked by george_mrx 1 in Engineering