Science & Mathematics - 26 January 2007

2007-01-26 13:42:46 · 8 answers · asked by And kayla was like 1 in Astronomy & Space

A constant net force of 410 N is applied upward to a stone that weighs 32 N. The upward force is applied through a distance of 2.0 m, and the stone is then released. To what height, from the point of release, will the stone rise?

Please help me with this problem.
I'm having trouble solving it.

2007-01-26 13:42:34 · 4 answers · asked by swimmertommy 1 in Physics

or was the chicken made by different spiecies of birds mating and the rusult was a chicken therefore making the egg come first. what do you think. please give details.

2007-01-26 13:41:51 · 11 answers · asked by Darkstar 2 in Zoology

2007-01-26 13:41:33 · 15 answers · asked by Zefram 2 in Mathematics

A person sittting on the top of the tall biulding drops ball at regular interval of one second. Find the position of the 3rd, 4th, 5th ball when the 6th ball is dropped?

2007-01-26 13:41:29 · 3 answers · asked by Anonymous in Physics

it keep going 30 mph in one spot or would it go faster in the car and go crazy?

2007-01-26 13:41:00 · 6 answers · asked by Z of L of U 2 in Physics

Mary weighs 505 N. She walks down a flight of stairs to a level 5.50 m below her starting point. What is the change is Mary's potential energy?

Please help me with this question.
I'm having trouble solving it.

2007-01-26 13:40:36 · 4 answers · asked by swimmertommy 1 in Physics

Why would you get the HCF of the given numbers when you multiply the lowest power of each common prime factor?

2007-01-26 13:40:27 · 2 answers · asked by Nickname 1 in Mathematics

2007-01-26 13:39:40 · 11 answers · asked by robpurpleblazekamp 2 in Mathematics

A 14,700 N car is traveling at 25 m/s. The brakes are applied suddenly, and the car slides to a stop, as shown in the picture link below. The average brakeing force between the tires and the road is 7,100 N. How far will the car slide once the brakes are applied?

This problem is complicated and it is giving me trouble.
Please help me to understand it to solve.

2007-01-26 13:38:47 · 2 answers · asked by swimmertommy 1 in Physics

2007-01-26 13:36:41 · 2 answers · asked by Nickname 1 in Mathematics

Project Criteria: The size of a shoe box. ~The protection for the egg must be engineered, not just filled with stuff.~No type of packing material will be allowed. This includes but may not be limited to such items as : bubble wrap, cotton balls, tissue , styrofoam pellets, cronstarch pellets, pillows, stuffed animals, shaving cream, paper, ballons or egg crate foam. No type of food may be used as packing material. This includes : jello, marshmallow, popcorn, or peanut butter,~ No wooden or metal boxes~No parachutes or helium filled balloons will be allowed~The egg will be provided at the time of the drop which you will then have to insert it into your project~ No boxes will be accepted that are preloaded with an egg. And it must have physics behind the design. Including Newtons laws of motion, terminal velocity, momentum, and gravity.

Thanks for the help ahead of time.

2007-01-26 13:36:40 · 2 answers · asked by Anonymous in Physics

And by molecular geometry I mean, for example, Bent, seesaw, square pyramidal, linear, octagonal, etc.

And, thanks in advance for the help!

2007-01-26 13:35:59 · 5 answers · asked by Random G 3 in Chemistry

An NCC parade is going at a uniform speed of 6km/hr through a place under a berry tree on which a bird is sitting at a height of 12.1 m. At a particular instant a bird drops berry. Which cadet will receive the berry on his uniform?

2007-01-26 13:35:34 · 1 answers · asked by Anonymous in Physics

1. Do the properties of pure water from a glacier and from a dessert differ?______Explain____________________________________

2. How do the properties of sodium chloride compare with the properties of sodium and chlorine?_____________________

2007-01-26 13:33:45 · 2 answers · asked by ♥Roberta. 5 in Chemistry

2007-01-26 13:32:59 · 9 answers · asked by Anonymous in Mathematics

If a friend throws a ball at 20km/h, to you, the spectator, the ball appears to be traveling at 20km/h, right? Well, if your friend walks forward at 5km/h, and throws the ball at 20km/h, to you, the standing spectator, the ball seems to travel at 25 km/h, right?

Does the same apply to the speed of light? If you shot a laser pointer in a vacuum, and moved forward, would the light move faster than normal?

I don't know if it would move faster, or if the beam of light would just become more powerful... What do you think?

2007-01-26 13:29:56 · 7 answers · asked by theVisionary 4 in Physics

2007-01-26 13:27:04 · 16 answers · asked by ? 6 in Zoology

Would you change anything in your life?

2007-01-26 13:26:21 · 11 answers · asked by Mysterious 4 in Physics

Ca(OH)2 + H3 PO4 = > H2 O + Ca4 (PO)2

2007-01-26 13:26:17 · 3 answers · asked by Anonymous in Chemistry

I can't figure these ones out for some reason.
2 * 3 + 4 * 3^2 =

5 – 3 * (-2)

(10 + 5) / 5 + (-3)^2 =

10 + 5 / 5 + 3^2 =

2007-01-26 13:26:12 · 4 answers · asked by Anonymous in Mathematics

2007-01-26 13:25:32 · 6 answers · asked by noggle4 2 in Mathematics

Shawn and his bike have a combined mass of 45.0 kg. Shawn rides his bike 1.80 km in 10.0 minutes at a constant velocity. What is Shawn's kinetic energy?

Please help me with this question.
I'm having trouble solving it.

2007-01-26 13:25:15 · 1 answers · asked by swimmertommy 1 in Physics

2007-01-26 13:22:28 · 15 answers · asked by noggle4 2 in Mathematics

if light has no mass and is a form of energy how can gravity have any effect on it for instance how can a black hole have enough gravity to capture light this means that light has a mass because u cant pull something that has no mass right???

2007-01-26 13:22:21 · 4 answers · asked by Anonymous in Physics

It's already happening, but from the article I just read the population of gray wolves is barely over 1000 in any one state. To me this doesn't sound like a large enough population to say the species has recovered - I admit I am fairly ignorant about what is a sustainable population though.

What would you consider a reasonable population level to say the species will continue to survive, and do you think it makes sense to allow people to hunt gray wolves.

http://news.yahoo.com/s/ap/20070127/ap_on_re_us/wolf_delisting

2007-01-26 13:21:07 · 6 answers · asked by brooks b 4 in Zoology

2007-01-26 13:19:44 · 16 answers · asked by Anonymous in Mathematics

x4 + 67537769982600 + 2513729387x2 = 16894495739822x + 104590x3

You can check your answers for this puzzle on Geochecker.com.
GCVVBT is the waypoint puzzle #

But I need the coordinates or the answer to the question.

2007-01-26 13:19:17 · 1 answers · asked by imaspaceychic 2 in Mathematics

2007-01-26 13:19:09 · 12 answers · asked by Anonymous in Mathematics

2007-01-26 13:18:32 · 6 answers · asked by Anonymous in Mathematics