Science & Mathematics - 22 October 2006

e.g. rovers; spirit/opportunity, cassini, hubble, voyager, etc...
do they ever come back to earth, or when they stop working, they stay out there somewhere ... if yea .. don't you think we're creating garbage out there?

2006-10-22 14:18:28 · 2 answers · asked by astro_dude 1 in Astronomy & Space

Exponential functions: use the formula f(x)= ab^x ..... i get
10 = 8.5(1.02)^x ... and when i try to find x.... i get the wrong answer plz help and show steps... thnku ....by the way the answer is '8 yrs' .... WITH OUT USING LOGARITHMS ... PLZ

2006-10-22 14:18:20 · 5 answers · asked by Meh... 3 in Mathematics

Water doesn’t have a constant density at all temperatures. At low temperatures, the density is low. The molecules don’t move much at low temperatures. At room temperature, the molecules are able to move. The density is 1.000g/cm3. At high temperatures, the molecules move quickly and freely. This causes the density to be high.

2006-10-22 14:17:59 · 6 answers · asked by aSnxbByx113 2 in Chemistry

a 5 kg block rests on a 30-degree incline. the coefficient of static friction between the block and the incline is 0.20. How large a horizontal force must push on the block if the block is to be on the berge of sliding (a) up the incline and (b) down the incline?

2006-10-22 14:17:24 · 1 answers · asked by anti 1 in Physics

2006-10-22 14:16:55 · 11 answers · asked by DaddyLloyd 1 in Earth Sciences & Geology

........has any merit?

AIDS started in the Congo. Belgium scientists created vaccines in monkey organs. This contacted with blood of infected simian HIV and evolved into human AIDS.
what do you think?

2006-10-22 14:16:48 · 2 answers · asked by Anonymous in Biology

know any good websites?

2006-10-22 14:16:35 · 4 answers · asked by astro_dude 1 in Astronomy & Space

Why are goats always sacraficed, and stuff?

2006-10-22 14:16:11 · 3 answers · asked by mouzer47 1 in Other - Science

You have two boxes of the same shape that hold flour. The larger box holds twice as much flour as the smaller one. You conclude that it would take you _?_ times as much paint to paint the larger box than it would take you to paint the smaller box.

2006-10-22 14:15:42 · 7 answers · asked by Anonymous in Mathematics

and what year this happened.He has really got my inerest,concerning science.

2006-10-22 14:13:35 · 11 answers · asked by reseda1420 4 in Astronomy & Space

Live vivisections of primates, etc?

2006-10-22 14:11:03 · 10 answers · asked by Anonymous in Other - Science

What is the Largest state in the USA??

Where is it located?? N, S, E, W or Centre?

2006-10-22 14:10:48 · 29 answers · asked by Anonymous in Geography

2006-10-22 14:10:34 · 2 answers · asked by si1enc3d 2 in Biology

2006-10-22 14:08:43 · 3 answers · asked by vimini1220 1 in Mathematics

and what are the values of sin x and cos x

2006-10-22 14:07:53 · 7 answers · asked by Ron P 1 in Mathematics

An LR circuit is hooked up to a battery , with the switch initially open. The resistance in the circuit is R=140 Ω, the inductance is L=2.40 H, and the battery maintains a voltage of E=48.0 V. At time t=0 the switch is closed

How much work has the battery done from the time the switch was closed until t=2.54E-2 s?

I know that you must integrate the power (P=VI) over the time interval to get the total work done by the battery, but I can't seem to get the right answer.

2006-10-22 14:05:37 · 1 answers · asked by eltel2910 1 in Physics

i want to be a medical scientist. WHAT should i take in high school and what classes should i take? What is a college you recommend? What majors do i need? How long will this take?

2006-10-22 14:04:45 · 7 answers · asked by juice. 3 in Medicine

2006-10-22 14:04:13 · 18 answers · asked by Anonymous in Weather

how do i make a blsating cap out of (AP)Acetone peroxide.
the blasting cap must be lit using a fuse. and how do i position the blasting cap in a containter of acetone peroxide

2006-10-22 14:02:44 · 2 answers · asked by hello 1 in Engineering

The bullet is fired at a block while the block is at rest (the block is at the lowest swing point). Once the bullet hits the block it rises to its highest point swing. The maximum height the pendulum rises is 3cm, at this max height the pendulum subtends an angle of 36.9 degress. The mass of the bullet is 80g and the mass of the pendulum bob is 911g. Acceleration of gravity is 9.8m/s^2. What is the initial speed of the projectile(answer in units of m/s)?

2006-10-22 13:56:56 · 1 answers · asked by Anonymous in Physics

2006-10-22 13:54:16 · 9 answers · asked by SWM 38 _4_ YOUNG GF 5 in Zoology

In the railroad freight yard, an empty freight car of mass m rolls along a straight level track at 1 m/s and collides with an initially stationary, fully loaded boxcar of mass 3.5m. The two cars couple together upon collision.

(a) What is the magnitude of the velocity of the two cars after the collision?

(b) Suppose instead that the two cars are at rest after the collision. With what speed was the loaded boxcar moving before the collision if the empty one was moving at 1 m/s?

2006-10-22 13:52:39 · 2 answers · asked by Anonymous in Physics

2006-10-22 13:50:35 · 24 answers · asked by jacob h 1 in Mathematics

2006-10-22 13:50:30 · 1 answers · asked by sallydog 1 in Biology

The pendulum bobs in the figure below are made of soft clay so that they stick together after impact. The mass of bob A is half that of bob B. Bob B is initially at rest. What is the ratio of the kinetic energy of the combined bobs, just after impact, to the kinetic energy of bob A just before impact?

2006-10-22 13:49:35 · 2 answers · asked by Anonymous in Physics

Then u turn ur headlights on would u be able to see where u are going?

2006-10-22 13:49:11 · 28 answers · asked by rachxx 1 in Physics

2006-10-22 13:48:12 · 5 answers · asked by LaKira B 1 in Chemistry

Please explain. I'm confused.

2006-10-22 13:47:52 · 11 answers · asked by Allie J. 1 in Mathematics

i need a 30% consentration of hydrogen peroxide but i only can get it in a 6% consentration how do i go about uping the consentrationit in a simple way

2006-10-22 13:47:29 · 3 answers · asked by hello 1 in Chemistry

2006-10-22 13:44:54 · 9 answers · asked by SWM 38 _4_ YOUNG GF 5 in Zoology