Science & Mathematics - 1 December 2006

(a) Find the energy absorbed in each cycle. in kJ
(b) Find the time required to complete each cycle. (s)

2006-12-01 11:40:06 · 1 answers · asked by melbourne 1 in Physics

The question is: Mark is 10 years younger than Larry. Larry's age in 8 years will exceed twice Mark's age 3 years ago by 4 years. How old is each now?

Larry is ?? years old
Mark is ?? years old.

2006-12-01 11:39:30 · 5 answers · asked by AG 2 in Mathematics

i am reading 'a briefer history of time' at the moment and it's fantastic but overwhelming at the same time. just started reading about wormholes and time travel. they are talking about curved space and how a wormhole would be taking the direct route not following the curvature of space/time. does this mean that any straight line we think we are taking through space is in fact curved.
and is it the same for vision through space ie: hubble.
we know that light bends through space but is it curved aswell? what causes the curvature?

2006-12-01 11:38:54 · 6 answers · asked by pleiades-im-coming-home 2 in Astronomy & Space

2006-12-01 11:37:13 · 8 answers · asked by chocolattecandy 2 in Zoology

2006-12-01 11:34:19 · 5 answers · asked by Yay Area 5 in Earth Sciences & Geology

If 50% of 100 is 50, but added back to the 100 makes 150, do you have 50% more or 33% more? I am told that the extra is only 33% of the total, but I added 50% to the orignal. Tell me who is wrong. Please

2006-12-01 11:34:03 · 5 answers · asked by pigment 1 in Mathematics

i dont see any reason why they couldnt live in the wild down by texas

2006-12-01 11:26:41 · 13 answers · asked by aj 4 in Zoology

2006-12-01 11:26:11 · 9 answers · asked by andrew z 1 in Astronomy & Space

I gather it's because the arm rails are connected to a different system than the stairs are. However why would the escalator be designed in this way in the first place. Why not connect the two systems so both the stairs and the arm rail move at the same pace?

2006-12-01 11:24:08 · 2 answers · asked by smolocco 1 in Engineering

Frank and Lou went bowling. In the first game Frank's score was 14 points higher than Lou's. What was each boys score?


please help me. It is almost impossible for me to do!

2006-12-01 11:22:18 · 6 answers · asked by Anonymous in Mathematics

I mean there is nothing in water that would make it taste better when cold, i know its a pointless question but why

2006-12-01 11:21:59 · 3 answers · asked by bill f 3 in Chemistry

A friend and I were talking the other and she said she'd heard that a comet (I didn't bother to correct her about that bit) was on a collison course with earth for the year 2036. Can someone please give a convincing (and true) answer that this is not the case?

2006-12-01 11:21:07 · 9 answers · asked by spear_1021 3 in Astronomy & Space

If a GPS receiver is connected to a remote antenna, is the position reported to be the location of the receiver or the location of the remote antenna?

2006-12-01 11:20:51 · 3 answers · asked by Mark 1 in Engineering

A * [(B + C)(D - E) - F(G*H) ] / J = 10

Knowing that each variable is a unique, single-digit, nonzero number, and that C - B = 1, and H - G = 3, what is the number ABCDEFGHJ, where each letter is a digit? For example, if A = 4, B = 2, and C = 7, ABC would equal 427.

2006-12-01 11:16:42 · 5 answers · asked by Anonymous in Mathematics

A certain brand of electric bulbs has an average life of 300 hours with a standard deviation of 25. A random sample of 100 bulbs is tested. What is the probability that the sample mean will be less than 295?

2006-12-01 11:15:45 · 4 answers · asked by John D 1 in Mathematics

There is an estate where the man had a lot of scientific equipment such as hundreds of industrial grade thermometers originally purchased for $5 to $10 a piece - a laser used in hospitals for surgery - various chemical analaysis machines (most circa early 90's)

2006-12-01 11:12:01 · 6 answers · asked by Christopher McGregor 3 in Engineering

I'm dreading the prep (phospho soda). I've done this a few times recently and i BARELY can choke down 1 bottle. Forget about the second dosage... I can't do it. Does anyone have any success stories to making this junk more palatable. I've tried gatorade, apple juice, holding my nose, guzzling, drinking slow... nothing works... i barely can get it down. help

2006-12-01 11:10:01 · 10 answers · asked by pinebarrons1 2 in Medicine

2006-12-01 11:09:55 · 17 answers · asked by fonsybbm 1 in Medicine

Anybody could answer this with a calculator. What I am looking for is an analytical explanation that proves the result.

2006-12-01 11:08:09 · 3 answers · asked by babs 1 in Mathematics

What formula do I use if I have the hypotenuse, but I need to find the length of each leg of isosceles right triangle.

2006-12-01 11:07:13 · 7 answers · asked by c_eva02 2 in Mathematics

Define a variable, and then write an equation for each problem. Do not solve.

1.Nicole has 26 cds and tapes altogether. when she tries to pair them up, she has 4 cds ledft over. How many tapes does Nicole have?

2. One number is 25 more than a second number. the sum of these two numbers is 26. find the numbers.

3. Anna is twice as old as her brother Dennis who is 4 years older than their brother curtis.The sum of their ages is 32. How old is Anna.

4. Hector works for a lawn care service. He gets paid twice a month and saves $50 of each pay. After 7 months, how much will he have saved?

2006-12-01 11:06:23 · 2 answers · asked by rbd fan 1 in Mathematics

What number three times makes sixty and is not twenty?

2006-12-01 11:05:48 · 10 answers · asked by Princesa Theresa 1 in Mathematics

2006-12-01 11:04:17 · 5 answers · asked by charlie 1 in Astronomy & Space

The two numbers are pretty close and I'm worried that Einsteins theory of relativity might make them equal if the Sun is moving too fast.

2006-12-01 11:01:40 · 4 answers · asked by Larry S 1 in Mathematics

How do I find the value of K that will make x^2-6x+K a perfect square?

2006-12-01 11:00:17 · 5 answers · asked by c_eva02 2 in Mathematics

How do you convert 2 mi to inches

2006-12-01 10:59:40 · 2 answers · asked by Anonymous in Mathematics

Define a variable , and then write an equation for each problem. Do not solve.

1. Olivia drove 189 miles from her home in Forth West Texas, to Austin in 3 hours. What was her average speed?

2. Shane has 4 more dimes than quarters and 7 fewer nickels than dimes. He has 28 coins in al. How many quarters does shane have?

3. Translate a(y+1)=b into a verbal sentence.

4. Write a problem on the given information. Let h=the number of hours you can wor during the summer. 5h-8

Translate each sent. into an equation, inequality, or formula.

5. The volume V of a pyramid is equal to one third the product of the area of the base b and its height h.

6. The circumference C of a circle is the product of 2 pie and the radius r.

2006-12-01 10:59:39 · 4 answers · asked by rbd fan 1 in Mathematics

Define a variable , and then write an equation for each problem. Do not solve.

1. Olivia drove 189 miles from her home in Forth West Texas, to Austin in 3 hours. What was her average speed?

2. Shane has 4 more dimes than quarters and 7 fewer nickels than dimes. He has 28 coins in al. How many quarters does shane have?

3. Translate a(y+1)=b into a verbal sentence.

4. Write a problem on the given information. Let h=the number of hours you can wor during the summer. 5h-8

Translate each sent. into an equation, inequality, or formula.

5. The volume V of a pyramid is equal to one third the product of the area of the base b and its height h.

6. The circumference C of a circle is the product of 2 pie and the radius r.

2006-12-01 10:58:47 · 4 answers · asked by rbd fan 1 in Mathematics

2006-12-01 10:57:55 · 7 answers · asked by Shakyria B 1 in Geography

Is that related to the Zeeman effect?If light is composed of both fields then, any of the two fields would cause interaction,thus affecting light ether by bending or interference?Did ever Michelson adn Morley ever considered the earth magnetic field interaction with lightin their experiment?

2006-12-01 10:54:32 · 4 answers · asked by goring 6 in Physics