The instruments attached to a weather balloon have a mass of 5.5kg. The balloon is released and exerts an upward force of 97.7 N on the instruments. Acceleration of gravity is 9.8 m/s^2
What is the acceleration of the balloon and the instruments? Answer in units of m/s^2.
Also after the balloon has accelerated for 10.5 s, the instruments are released. What is the velocity of the instruments at the moment of their release.? Answer in m/s.
Assume: The upward direction is positive. What net force acts on the instruments after their release? Answer in N.
How long after their release does the direction of their velocity first become downward(negative)? Answer in units of s.
Pleaseeeee explain, i am desperate i spent 10 hours on 5 problems and i haven't solved not one! please help
2007-10-18 14:55:11 · 2 answers · asked by Anonymous in Physics
orwould you starve i,m a meat lover so it would be so diffuclt for me not to eat meat. meat consists of about 95 percent of my diet..
2007-10-18 14:55:00 · 24 answers · asked by Anonymous in Polls & Surveys
2007-10-18 14:54:46 · 26 answers · asked by Bill W 【ツ】 6 in Polls & Surveys
2007-10-18 14:54:39 · 18 answers · asked by Anonymous in Polls & Surveys
Diana is taking a tirp that is 224 miles long. She has already driven 59 miles. If she drives at a speed of 55 miles per hour, how many more miles will she need to drive to reach her dsetination?
Please! Help, I can't understand the problem. Any help is encouraged. What is the answer, and how do you actually do it?
2007-10-18 14:54:34 · 5 answers · asked by Abi 3 in Mathematics
what do u guys think the overall score will be for this one?
I'm going with.. colts - 36 jags - 10
2007-10-18 14:54:27 · 16 answers · asked by Anonymous in Football (American)
2007-10-18 14:54:24 · 6 answers · asked by Alexis 3 in Cooking & Recipes
growing up playing baseball i always thought he home team no matter what sat on the first base side is it me or did they change the rule over the years
2007-10-18 14:54:20 · 4 answers · asked by da_kid_1220 1 in Baseball
2007-10-18 14:54:16 · 4 answers · asked by anonymous 3 in Polls & Surveys
... with which character can you identify yourself?
2007-10-18 14:54:03 · 6 answers · asked by Mutations Killed Darwin Fish 7 in Religion & Spirituality
put in any type you want. mine is the peporoni and extra chesse
2007-10-18 14:53:49 · 25 answers · asked by Anonymous in Other - Food & Drink
When the host asked him a question, Greg said he would call his dad because his mom would pass out and then when he called he called his mom!... do you think his parents are divorced? he might have called his dad, then tried his mom?
Do you think he deserved the star? and what do you think of the new council members Guylan and Zach? I think both Zach and Guylan, but i would have liked to see the whole show with Mike and Taylor as council members... it would have definetely been interesting!
2007-10-18 14:53:34 · 8 answers · asked by LovingAngelsInstead 2 in Reality Television
Long story short, ive been feeding a 3 stray feral cats 3, two of which have already been TNR. The third one i didnt trap in time and i think she had a litter (she was huge then skinny). I figured none of the kittens survived becuase i never saw any and ive been feeding the mom every morning and night. She never looked preoccupied with a litter hiding somewhere becuase she would hang out and wait for hours until I came home to feed her and the other two.
Anyways, tonight I looked outside where i always feed the cats and low and behond there were two baby kittens also eating from the food. As i told you im trying to stop the multiplying (TNR) so I freaked and took the two babies inside to my spare bedroom. I figured kittens have much more of chance to be adopted then grown wild cats. Anyways i do know a woman who runs a no-kill shelter and i plan to take them there tommorrow?
Did i act too soon?should I have let them be and trapped them when they were older?what should i do
2007-10-18 14:53:33 · 6 answers · asked by Anonymous in Cats
juss wantin to know
thank you
2007-10-18 14:53:24 · 4 answers · asked by Joey W 1 in Skin Conditions
Its a Tall Flower. It is very beautiful the petals droop over but they are like little balls all the way down the stem... Its not an orchid or a lily I don't think... Please Help!
2007-10-18 14:53:20 · 7 answers · asked by kit-kat 2 in Garden & Landscape
2007-10-18 14:53:04 · 2 answers · asked by Billy M 1 in Mathematics
can someone please give me 4 iambic words and 4 amphibrach words? please!!
2007-10-18 14:52:49 · 2 answers · asked by Melanie K 2 in Words & Wordplay
Or are you usually the heartbroken?
2007-10-18 14:52:42 · 22 answers · asked by xxon_23 7 in Polls & Surveys
If a genie said it would give you a million dollars, but if you took it you would turn into a black person. Would you do it?
2007-10-18 14:52:41 · 7 answers · asked by Anonymous in Other - Society & Culture
im a 17 year old male and some times i dont know what to say to girls .... like what do i talk to girls about?
and i feel like up tight or something
why do people say to act with girls like you act when ur with ur friend thats stupid cuz we cant talk about videogame,porn,and you know guys stuff?
2007-10-18 14:52:32 · 29 answers · asked by Tom 1 in Singles & Dating
A bicycle has wheels of radius 0.29 m. Each wheel has a rotational inertia of 0.078 kg* m2 about its axle. The total mass of the bicycle including the wheels and the rider is 74 kg. When coasting at constant speed, what fraction of the total kinetic energy of the bicycle (including rider) is the rotational kinetic energy of the wheels?
I just don't know what they are asking for?
2007-10-18 14:52:29 · 1 answers · asked by Anonymous in Physics
2007-10-18 14:52:07 · 7 answers · asked by wardc89 2 in Martial Arts
2007-10-18 14:52:06 · 25 answers · asked by gator45 1 in Football (American)
list the first 5 partial sums of the series: from 1 to infinity of 5*(-1)^n *n^3
2007-10-18 14:52:01 · 1 answers · asked by ! 2 in Mathematics
the object's temperature is 500k. Moving at 3m/sec for 4.5 m. what is the total heat lost and what is the final temperature?
2007-10-18 14:52:00 · 1 answers · asked by haohao 1 in Physics
Juries are misled, evidence is tampered with, witnesses are threatened...all in the name of politics and the pursuit of power:
http://www.deathpenaltyinfo.org/article.php?scid=45&did=292
If one innocent person is executed (and they have been), it is beyond tragic; beyond tragic enough to make sure it never happens again.
2007-10-18 14:51:54 · 18 answers · asked by frenzy-CIB- Jim's with Jesus 4 in Religion & Spirituality
In particular, I would like to know what time I can expect today's Grey's episode to be up online. I can't find this information anywhere on the ABC site. I think it's supposed to come on "the next day," but does that mean midnight..? Or what?
2007-10-18 14:51:33 · 4 answers · asked by Anonymous in Drama
1. How are the heliocentric and geocentric models of the solar system different?
2. what contributions were made by Copernicus and Kelper changed out understanding of the solar system?
3. what are the main features of the inner and
outer planets?
4. what are the characteristics of other planerary bodies?
5. what are the conditions for living things on Earth?
6. Why do Mars and Europa are thought to be good possible places to search for evidence of life?
2007-10-18 14:51:32 · 8 answers · asked by love_moon_bb 2 in Astronomy & Space
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