Science & Mathematics - 18 September 2007

My invention is a tent with propellers. It's similar to a helicopter but it's also different at the same time. It is fueled by gasoline, ( thinking of making it solar powered). Its for all ages and it can get you where you need to be quicker and easier. Its built with a navagation system, blue toothed technology, and weather and climate indicator. Also it has built- in automatic doors and much more! I hope it be a big time seller ($1 million dollars).

2007-09-18 08:33:45 · 8 answers · asked by Darrell M 1 in Engineering

7. What is the process called in which water vapor and carbon dioxide retain heat? (Points: 3)
plate tectonics

continental drift

radioactive decay

greenhouse effect



8. What does the hydrosphere include? (Points: 3)
plants

fish

rivers

dust



9. What is the cryosphere? (Points: 3)
earth's ice

mountains

earth's crust

molten rock



10. Which of the following is an example of how the geosphere can affect the atmosphere? (Points: 3)
rainstorm

earthquake

volcano eruption

tidal wave



11. A major concern about increasing global temperatures is that a large portion of polar ice could detach and melt into the ocean. If this happened, which two spheres would interact? (Points: 3)
cryosphere and hydrosphere

geosphere and atmosphere

cryosphere and biosphere

hydrosphere and atmosphere



12. From what does the ozone layer protect the earth? (Points: 3)
volcanic eruptions

ultraviolet radiation

asteroid impacts

earthquakes

2007-09-18 08:33:07 · 5 answers · asked by JJ 1 in Earth Sciences & Geology

. What do Earth scientists study? (Points: 3)
machines

oceans

plant cells

farming methods



2. Underwater earthquakes may cause which of the following? (Points: 3)
tsunami

volcano

hurricane

asteroid impact



3. Many scientists believe that the dinosaurs disappeared as the result of which of the following? (Points: 3)
tsunami

volcanic eruption

hurricane

asteroid impact



4. Why study earth science? (Points: 3)
to reduce pollution from cars

to understand how plants reproduce

to predict planetary changes

to cure certain diseases



5. Which of the following makes up the atmosphere? (Points: 3)
all living things

ice

water

the air around us



6. Mountains are part of which earth sphere? (Points: 3)
hydrosphere

atmosphere

cryosphere

geosphere

2007-09-18 08:31:27 · 4 answers · asked by JJ 1 in Earth Sciences & Geology

2007-09-18 08:31:14 · 3 answers · asked by Anonymous in Other - Science

1/4y^2 (that's one divided by four y to the power of two)

i'd like it so that it's just on one line. keeping it the same value of course

2007-09-18 08:30:40 · 8 answers · asked by violet.fusion 2 in Mathematics

2007-09-18 08:27:25 · 2 answers · asked by yossi c 1 in Biology

What mass of cesium chloride must be added to 0.565 L water to produce a 0.355 m solution? (Assume d of H2O = 1.00 g/mL.)
_________g

What are the mole fraction and the mass percent of CsCl?

2007-09-18 08:24:40 · 1 answers · asked by Anonymous in Chemistry

Is it real ? And if it is does that mean after awhile it will always be like summer? ...... I dont know what im talking about someone explain to me what it is lol

2007-09-18 08:24:34 · 2 answers · asked by Anonymous in Earth Sciences & Geology

Okay, I have tried EVERYTHING, but I can't seem to get this! I don't know why! Maybe it's because I'm missing some part (i.e. the theta part) of my equation, but maybe someone can help me... I'll pick a best answer TODAY! Thank you SO much! Please show me step-by-step how to solve this! Thanks!

This text was printed on a four-color web heatset offset press. A cylinder on this press has a 13.37 inch diameter. The linear speed of a point on the cylinder's surface is 18.33 feet per second. What is the angular speed of the cylinder, in revolutions per hour?

What also confuses me is, should the units be in feet or inches? I've tried both, but I can't seem to get it! Hmmmmmm!

2007-09-18 08:22:33 · 2 answers · asked by Anonymous in Mathematics

what would happen to her weight should she go to australia? (question about force due to gravity)

2007-09-18 08:19:14 · 6 answers · asked by Anonymous in Earth Sciences & Geology

i read in a newspaper that winter is going to be really cold this year is it true?

2007-09-18 08:19:08 · 38 answers · asked by flowersinthewind 5 in Weather

2007-09-18 08:19:07 · 8 answers · asked by Anonymous in Mathematics

a. the cells can reproduce more rapidly
b. the cells may lose the ability to perform other functions
c. the cells are less likely to become cancerous
d. the cells become more self-sufficient

2007-09-18 08:16:54 · 3 answers · asked by crismarie 4 in Biology

You drink 350 mL of diet soda that is at a temperature of 5 °C.
(a) How much energy will your body expend to raise the temperature of this liquid to body temperature (37 °C)? Assume that the density and specific heat capacity of diet soda are the same as for water.
(b) Compare the value in part (a) with the caloric content of the beverage. (The label says that it has a caloric content of 1 Calorie.) What is the net energy change in your body resulting from drinking this beverage?
(c) Carry out a comparison similar to that in part (b) for a nondiet beverage whose label indicates a caloric content of 240 Calories.

Help, pleeeease!!

2007-09-18 08:14:13 · 1 answers · asked by Anonymous in Chemistry

a. the epidermis is thicker
b. the dermis contains contains more types of tissue
c. the dermis is made mostly of dead cells
d. the epidermis consists of mostly adipose cells

2007-09-18 08:13:21 · 4 answers · asked by crismarie 4 in Biology

2007-09-18 08:08:03 · 16 answers · asked by Moe 1 in Weather

There's an animal whose horns grow from its snout only to curve back and eventually penetrate its skull... does anyone know the name of this animal?

2007-09-18 08:06:18 · 3 answers · asked by joshuajcole 2 in Zoology

2007-09-18 08:05:44 · 10 answers · asked by Anonymous in Astronomy & Space

Is it simply that one occurrs in the eastern hemisphere and one in the western hemisphere?

2007-09-18 08:04:23 · 10 answers · asked by Anonymous in Weather

Say a horse canters away from it's trainer in a straight line, moving 130.0 m away in 14.0 s. It then turns abruptly and gallops halfway back in 4.80 s. Use "away from the trainer" as the positive direction.
a] what is the average speed?
b] what is the average velocity?

I can't fully grasp the concept of the two, and also displacement...

2007-09-18 08:01:55 · 4 answers · asked by CL 1 in Physics

2007-09-18 08:01:17 · 4 answers · asked by Anonymous in Botany

2007-09-18 07:56:29 · 7 answers · asked by rizing 4 in Mathematics

-x +2
18
-------------
8
9


Step by step please!

2007-09-18 07:54:29 · 3 answers · asked by . 1 in Mathematics

Okay this is the question : 8 sqrt -3/8

So is this the answer? 8 sqrt -i/4 than I multiply?

8 * i/4 ?

So is the answer 2i ?

Please help. Thanks.

2007-09-18 07:53:36 · 4 answers · asked by Anonymous in Mathematics

2007-09-18 07:52:35 · 7 answers · asked by lang1323 2 in Mathematics

or you would be erased from history (and dead) where would you go?

you cannot choose a time period that is within 114 years after your birth.

2007-09-18 07:47:23 · 27 answers · asked by Hyperstorm 2 in Paranormal Phenomena

http://aarontheamazing.googlepages.com/IMG_4131.JPG

2007-09-18 07:45:11 · 3 answers · asked by Bob P 2 in Zoology

2007-09-18 07:43:53 · 3 answers · asked by Anonymous in Mathematics

Solve the system of equations using the addition (elimination) method.
If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is “no solution” or “infinitely many solutions.”
2x – 7y = 3
-4x + 14y = -9

2007-09-18 07:43:07 · 6 answers · asked by spanishfly_100 1 in Mathematics

Solve the system of equations using the addition (elimination) method.
If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is “no solution” or “infinitely many solutions.”
x + 5y = 4
2x – 5y = 2

2007-09-18 07:41:48 · 8 answers · asked by spanishfly_100 1 in Mathematics