Science & Mathematics - 31 January 2007

2007-01-31 01:59:35 · 6 answers · asked by The Truth Hurts! Ouch! 5 in Chemistry

a. y= 4(x-3)^2
b. y= -1/4(y+3)^2
c. y= -4(x+3/4)^2
d. y= 1/4(y-3)^2

2007-01-31 01:58:28 · 3 answers · asked by lana l 1 in Mathematics

a square table is to be covered with small square tiles. the table has a area of 4 square feet. how many tiles are needed if each tiles measures 3 inches on one side ?

2007-01-31 01:57:33 · 6 answers · asked by woogie1958 1 in Mathematics

weaklow occurs mostly on the fingers

2007-01-31 01:57:08 · 2 answers · asked by tonia 1 in Biology

2007-01-31 01:56:45 · 2 answers · asked by negland2002 1 in Biology

a- linear momentum
b- angular momentum
c- kinetic energy
d- potential energy

2007-01-31 01:55:07 · 4 answers · asked by Jac A 1 in Physics

a- potential energy
b- kinetic energy
c- rest energy
d- momentum

2007-01-31 01:52:48 · 2 answers · asked by Jac A 1 in Physics

The ones that light up in the ocean?

2007-01-31 01:52:16 · 3 answers · asked by bbap 1 in Biology

A 70.3 kg person eats three 38.7 g brownies with nuts. What percentage (%) of their daily basal metabolic rate have they ingested ?




How long would it take, in minutes, for the person in the above question to walk off all the calories in the three brownies ? Walking requires energy equal to 2.5 times the basal metabolic rate.

Do NOT consider the energy needed to digest, absorb, and metabolize the snack itself, which the text describes as 10% of the ingested amount of food. Use the total amount of the energy in the three brownies in your calculation.

2007-01-31 01:51:38 · 2 answers · asked by sunyrob 1 in Chemistry

A house with a 15.3 × 103 ft2 floor area and 8.00 ft high ceilings is to be heated with propane. How many kilograms of propane would be needed to raise the temperature of the air inside the house from 59.0 oF to
72.0 oF ?. In this calculation your are ignoring the temperature of the walls etc.



The moloar specific heat of the air inside the house is 30.2 J mol −1 oC −1
The average density of air over this temperature range can be estimated to be 1.22 g/L.
The molar mass of air is 29.1 g/mol.
There are 28.317 liters in a cubic foot.
The molar heat of combustion of propane is −2220.047 kJ/mol

2007-01-31 01:50:42 · 2 answers · asked by sunyrob 1 in Chemistry

When they have fallen halfway down, the have the same
a-speed
b-potential energy
c-kinetic energy
d-rest energy

2007-01-31 01:50:19 · 5 answers · asked by Jac A 1 in Physics

Assume that 3.57 x 106 kJ are needed to heat a swimming pool. If this energy is derived from the combustion of liquid ethanol (CH3CH2OH) at standard conditions (25 oC and 1 atm) what volume in liters of ethanol must be burned?




The heat of combustion of ethanol is 1366.818 kJ/mol. The density of ethanol is 0.789 g/cm3


Enter a numeric answer only. Do not enter units.

2007-01-31 01:50:14 · 1 answers · asked by sunyrob 1 in Chemistry

2007-01-31 01:48:30 · 1 answers · asked by Russell 3 in Zoology

2007-01-31 01:46:09 · 17 answers · asked by wendy29 1 in Mathematics

a- is the correct formula if v is properly interpreted
b- always gives too high a value
c- is the low-speed approximation to the correct formula
d- is the high-speed approximation of the correct formula

2007-01-31 01:46:02 · 4 answers · asked by Jac A 1 in Physics

2007-01-31 01:45:43 · 1 answers · asked by Mystacia 1 in Engineering

2007-01-31 01:45:06 · 2 answers · asked by maculhet18 1 in Other - Science

plsss help me and tell me about any i mean any unversity that can give me a transfer to a canada university for my engineering now i m in my third semester but i want a transfer and my average gpa is 2.5 .plssssssssssssssssssssssssssss help me

2007-01-31 01:43:00 · 2 answers · asked by the_big_hit_in_yawhoo 1 in Engineering

2007-01-31 01:42:03 · 4 answers · asked by jackass 1 in Chemistry

a- is the same everywhere in the universe
b- depends only upon its mass
c- depends only upon the acceleration of gravity
d- depends upon both its mass and the acceleration of gravity

2007-01-31 01:40:42 · 5 answers · asked by Tami B 1 in Physics

2007-01-31 01:39:25 · 6 answers · asked by thegame 2 in Biology

2007-01-31 01:39:08 · 8 answers · asked by pelican watcher 2 in Physics

theta is greater or equal to 0 and less than or equal to pi sqr root of (2)

2007-01-31 01:39:04 · 2 answers · asked by jp 1 in Mathematics

in stones and pounds please because i'm english and rubbish at maths lol!

2007-01-31 01:37:20 · 2 answers · asked by Tori B 1 in Zoology

You are given the numbers 5, 10, 15, 20, 25 and the signs + / * - You must use each number and sign but only once and get an answer of 180

2007-01-31 01:35:29 · 8 answers · asked by Anonymous in Mathematics

2007-01-31 01:34:34 · 2 answers · asked by BrownMorristown 2 in Zoology

of the following of the object's properties?
a- speed
b- acceleration
c-kinetic energy
d-potential energy

2007-01-31 01:32:56 · 6 answers · asked by Tami B 1 in Physics

2007-01-31 01:32:53 · 8 answers · asked by GMK 1 in Earth Sciences & Geology

1.750 kg of ice at 0.00 degrees celcius is added to 500.0 g of water in an insulated container. What is the mass of ice that remains unmelted after equilibrium is established?

2007-01-31 01:31:48 · 1 answers · asked by Anonymous in Chemistry

2007-01-31 01:31:33 · 19 answers · asked by ralphbreach 1 in Biology