Science & Mathematics - 31 October 2006

2006-10-31 15:50:16 · 14 answers · asked by babyboobabyboo22 1 in Geography

What would the wavelenght of a microwave operating at 2.5 GHz with a power output of 500 W be?

I know that the wavelenght is c/f, and f = 1GHz is 10^9 Hz, therfore, 2.5 x10^9, but what would c=???

2006-10-31 15:49:35 · 2 answers · asked by Michelles W 1 in Physics

what recommendation that it would like to tell us?

2006-10-31 15:49:23 · 4 answers · asked by sakura 1 in Physics

1)Suppose a metal sphere is launched up a ramp [incline of 20 degrees] with Vi = 1.5 m/s. The end of the ramp is 1.20 m
above the floor. Calculate the range of the sphere.
2)Now suppose that the ramp is tilted downwards as shown below. Suppose that the sphere leaves the ramp at 1.5 m/s. The bottom of the ramp is 0.90 m above the floor. Calculate the range of the sphere.

2006-10-31 15:48:32 · 1 answers · asked by Neo 2 in Physics

2006-10-31 15:48:03 · 8 answers · asked by ~*CURLYSUE*~ 1 in Mathematics

A. Be moving downward
B. Have a horizontal motion in additon to a verticle motion
C. Experience either an applied force or air resistance
D. Be changing its velocity
E. Have a constant speed
F. Be accelerating

2006-10-31 15:48:02 · 3 answers · asked by "G" 1 in Physics

2006-10-31 15:47:02 · 6 answers · asked by mopasia23 1 in Engineering

Evolution or Creation? You tell me.

2006-10-31 15:45:50 · 17 answers · asked by jit bag 4 in Biology

Br-

Ne-

Ne+

2006-10-31 15:44:19 · 1 answers · asked by Anonymous in Physics

...the original elements? The first ones, not the cooling of the hydrogen that produces stars, etc.......the first ones?

2006-10-31 15:39:21 · 9 answers · asked by Matt 2 in Astronomy & Space

2006-10-31 15:38:27 · 1 answers · asked by ahkiaen 1 in Engineering

Would the pointy end move through water faster or the rounded end?

2006-10-31 15:37:35 · 4 answers · asked by brett p 1 in Physics

I saw a map showing the location of the ice in the last ice age. The ice covered basicall 75% of N America and most of North-west Europe. But that was it.

Most of Siberia was free of ice, presumably because it did not suffer from the N Atlantic reversal of the ocean currents.

But if all that ice, up to 4 km deep, was offset so much of the pole, surely it must have had an effect on the way the Earth rotates.

I know the Earth is many orders more massive than that ice, but I note that bowlers in cricket can alter the swing of the ball simply by digging a gouge in it with their fingernail. It is called ball-tampering, and is illegal. But it goes on and does the trick of altering the spin of the ball.

So, surely all that ice must have had an effect.

Anyone heard of any evidence of that?

2006-10-31 15:35:48 · 4 answers · asked by nick s 6 in Earth Sciences & Geology

2006-10-31 15:35:34 · 16 answers · asked by amethyst_mitchell 1 in Weather

I am wondering whether a pharmacist with many years of clinical experience can apply for MD in internal medicine?. Any suggestions in this regard will be highly appreciated.

2006-10-31 15:33:14 · 7 answers · asked by csripriya1 1 in Medicine

Predict the normal boiling point of triethylborane (C6H15B) using the following data:
ΔH°f (25°C) ΔG°f (25°C)
C6H15B(l) –194.6 kJ/mol 9.4 kJ/mol
C6H15B(g) –157.7 kJ/mol 16.1 kJ/mol


A)90°C
B) –21°C
C) 365°C
D) 256°C

2006-10-31 15:31:38 · 5 answers · asked by Erin C 1 in Chemistry

What might the consequences be for a zygote resulting from the union of such gametes?

2006-10-31 15:25:49 · 3 answers · asked by totallyclueless 1 in Biology

I see kids posting their homework questions and good samaritans answering them eagerly. I wonder about the long-term effects.. Will more kids end up learning less and less? (Of course, some folks will get a lot of points for answering, but..)

2006-10-31 15:25:25 · 9 answers · asked by kapi 1 in Mathematics

I know The Answer I just Wonder How many Others Know.

2006-10-31 15:25:22 · 9 answers · asked by Kuraimizu 3 in Physics

2006-10-31 15:25:01 · 1 answers · asked by Anonymous in Physics

(continuation of question) electrons to form anions?

2006-10-31 15:24:03 · 7 answers · asked by Anonymous in Physics

From what I found out, condenser changes gases to liquid and evaporator changes liquid to gases. But how does each of this work in a refrigerator?

2006-10-31 15:23:16 · 5 answers · asked by Ian In Need 1 in Chemistry

K=1/2 M V ^2, are the units of M in grams or kg? and is V m/sec, cm/sec or k/hour?? The question is Kinetic energy of a baseball where mass is 5.25 ozs and V 100miles/hour. I dont know what to convert too,

2006-10-31 15:23:03 · 2 answers · asked by lewisepalmer 2 in Physics

2006-10-31 15:19:22 · 3 answers · asked by brazukinha 1 in Biology

2006-10-31 15:16:44 · 2 answers · asked by shi yuin 1 in Engineering

a. anabolic and hydrolysis
b. homeostasis and catabolic
c. metabolism and catabolism
d. catabolic and anabolic

2006-10-31 15:16:25 · 3 answers · asked by georgia_gurl345 2 in Biology

The X-rays are very harmful to our physical health.

2006-10-31 15:12:12 · 2 answers · asked by JAMES 4 in Physics

given a head wind of 15mph,what percentage of loss would I have from 2mph wind if I throw by neighbors cat at a velocity of 35mph(i spin cats over my head like no one else can)

2006-10-31 15:06:51 · 1 answers · asked by steve b 5 in Physics

2006-10-31 15:02:33 · 3 answers · asked by fernii56 1 in Geography

Perhaps the best proof against evolution is the existence retards who support intelligent design and creationism. If we went through millions of years of evolution, then why the majority of the human race still so f-ing stupid?

2006-10-31 15:02:13 · 9 answers · asked by Anonymous in Other - Science