Science & Mathematics - 11 October 2006

Hi, i am taking a course in geophysics nowdays and the Prof. asked us to write a report about the role of Applied Geophysics in ......... (he didint determine .. he said we can choose any field we like) .. i am really puzzled .. can you suggest a subject please .. which can be found in many refrences !!!

the other question is that when we explore for petroluem what are the aim of doing seismic reflection method .. we can get a lot of information but what are the most important ?

2006-10-11 09:09:43 · 3 answers · asked by Geo06 5 in Earth Sciences & Geology

2006-10-11 09:07:58 · 6 answers · asked by Anonymous in Mathematics

a)3.1 x 10-12 M
b)6.9 x 10-03 M
c)1.6 x 10-12 M
d)6.4 x 10-03 M
e)6.3 x 1002 M
f)3.2 x 10-03 M

2006-10-11 09:07:23 · 3 answers · asked by geoman 1 in Chemistry

I heard that nothing could practically travel at the speed same as light. But it is theoritically proved that even if someone/something could actually travel that fast, Time wouldn't have any effect on it/him.

Interestingly, if someone travels at more speed than light, Time would go backwards for him. So the speed of light is a constant speed, a zero point, and related to time.

My question is, is all this true? or partly true? Anyone shed some light on it if know about it?

2006-10-11 09:04:15 · 11 answers · asked by Legend 3 in Physics

How much does it cost per hour to run an 11W energy saving bulb? How does this compare to a normal 100W light bulb.

2006-10-11 08:59:33 · 10 answers · asked by the demon 1 in Physics

2006-10-11 08:58:34 · 10 answers · asked by Lisa 1 in Astronomy & Space

Do u support nuclear power or other methods of producing energy

2006-10-11 08:58:24 · 20 answers · asked by Dave 3 in Other - Science

Upgrading my shop by buying a cnc mill so I can produce in house. However, I want to be able to mill steel, stainless, titanium and aluminum. The steel and titanium I know are lower rmp speeds for milling due to hardness. What is the minimum spindle rpm allowable so that I can buy a mill that will be capable of milling all of the above listed material?

2006-10-11 08:58:18 · 1 answers · asked by gpbullock 1 in Engineering

my home work

2006-10-11 08:56:49 · 7 answers · asked by James P 1 in Other - Science

2006-10-11 08:55:49 · 2 answers · asked by spade 1 in Earth Sciences & Geology

2006-10-11 08:55:25 · 3 answers · asked by Erin B 1 in Chemistry

this is a math question

2006-10-11 08:53:07 · 9 answers · asked by dipali p 1 in Mathematics

And if so, how do they go about explaining it?

2006-10-11 08:52:49 · 14 answers · asked by swordman 2 in Other - Science

The National Transportation Safety Board is testing the crash-worthiness of a new car. The 2300 kg vehicle, moving at 15 m/s, is allowed to collide with a bridge abutment, which stops it in 0.56 s. What is the magnitude of the average force that acts on the car during the impact? Can you explain your answers?

2006-10-11 08:52:02 · 2 answers · asked by Anonymous in Physics

2006-10-11 08:51:34 · 6 answers · asked by Chris Y 1 in Earth Sciences & Geology

does it make sense that aliens exist way before us, like 10000000000000000000000000000000000000000000000000000000000000 years and their technologies are, like 1 trillions better than ours? and because our technologies are not advanced enough to explore our space. is that why we don't know much about them?

2006-10-11 08:50:20 · 10 answers · asked by      7 in Astronomy & Space

Suppose that your mass is 80 kg. How fast would you have to run to have the same translational momentum as a 1600 kg car moving at 1.2 km/hr? Can you explain what would be the steps to solve this problem?

2006-10-11 08:48:55 · 1 answers · asked by Anonymous in Physics

i need help creating a paper plane for a project.if you have any ideas or tips how to build a paper plane please tell how to fold each fold. thank you!

2006-10-11 08:48:35 · 3 answers · asked by iana0895 3 in Physics

2006-10-11 08:47:33 · 2 answers · asked by Swoosh 2 in Chemistry

You want to send a spacecraft from Earth to Mars [P(Mars)=1.88 yrs; a(Mars) = 1.52 AU]

1. What is the period of the spacecraft's orbit?
b. How long will it take the spacecraft to get to Mars?
------------------------

Mary weighs 100 pounds. Compared to what she weighs now, how much would she weigh if:

1. The mass of the Earth were 4 times its present value?
2. The radius of the Earth were 1.5 times its present value?
3. The radius of the Earth were .5 its present value?

Tell me how to do one.. and I'll the the rest for this problem..

Thanks.

2006-10-11 08:46:32 · 2 answers · asked by Anonymous in Astronomy & Space

Five dogs and their five owners wish to cross a river under the following constraints:

The available boat can carry no more than 3 occupants

All the owners and one of the dogs can drive the boat

Dogs can be in the presence of one another without their owners present

If any person is in the presence of a dog (even momentarily) without the dog's owner being present, that person will be viciously attacked.


They wish to cross the river without injury to any owner and in the minimum number of trips.


How can this be done?

2006-10-11 08:42:59 · 2 answers · asked by Dylan 2 in Mathematics

why is pluto a dwarf planet now?
what does dwarg mean?

2006-10-11 08:41:16 · 11 answers · asked by      7 in Astronomy & Space

2006-10-11 08:40:15 · 7 answers · asked by Diana K 1 in Other - Science

compounds and elements. science

2006-10-11 08:39:35 · 5 answers · asked by Anonymous in Chemistry

2006-10-11 08:39:06 · 8 answers · asked by Anonymous in Biology

2006-10-11 08:38:52 · 4 answers · asked by Diana K 1 in Other - Science

in many animals, glucose rather then starch is transported by the blood through the body to all the cells. starches in many foods digested to yield glucose. why is the disgestion of starch to glucose necessary?

2006-10-11 08:38:27 · 6 answers · asked by coming4yu17 1 in Biology

2006-10-11 08:37:16 · 1 answers · asked by Vadix x 1 in Biology

popcorn sold at most movie theaters is very salty causing people to become thirsty and buy soft drinks. in scientific terms (mentioning the changes in specific body cells) why the salty popcorn causes this thirst

2006-10-11 08:34:24 · 3 answers · asked by coming4yu17 1 in Biology

what is the square number of 225 and 625? plz reply quick!!!!!!
thankyou...

2006-10-11 08:33:26 · 6 answers · asked by Anonymous in Mathematics