# Posts by asdf

Total # Posts: 72

Physics
A 66000 kg iceberg at ?6.7?C breaks away from the polar ice shelf and floats away into the ocean at 6.36?C. What is the final change in the entropy of the system, when the iceberg has completely melted? The specific heat of ice is 2010 J/kg ·?C.

math
Ilya and Dan shared 360 hats in the ratio 7:5. How many more hats did Ilya have than Dan?

Physics
34

Chemistry
im gonna have to agree with anonymous

Language
1) B 2) B 3) D 4) A Those should be the correct answers

Physics
1.2 m/s. Don't know how but that what it says. Marvin, provide an answer or be quiet.

Physics
0.579 m/s

Calc 1
asdf

physics
asdf

Algebra help

Science
the caliper is .0005 cm

Math
The bases of trapezoid ABCD are AB and CD. Let P be the intersection of diagonals AC and BD. If the areas of triangles ABP and CDP are 8 and 18, respectively, then find the area of trapezoid ABCD.

Math
Solution 1: Triangles ADE and BFE are similar since \overline{AD}\parallel\overline{BF}. Furthermore, the ratio of their areas is 9:1, so AE/BE = 3. Then CD = AB = AE + BE = 3BE + BE = 4BE. Triangles FEB and FDC are similar, so the area of triangle FDC is (DC/BE)^2 \cdot [FEB...

Math
Let ABCD be a parallelogram. Let M be the midpoint of AB and N be the midpoint of AD. Diagonal BD intersects CM and CN at P and Q, respectively. Find PQ/BD.

physics

math

Physics
20

Physics
kkkl

Science
tits

Science
awesome :+

Science
is

Stats
123123

calculus
A water-trough is 10m long and has a cross-section which is the shape of an isosceles trapezoid that is 30cm wide at the bottom, 80cm wide at the top, and has height 50cm. If the trough is being fi lled with water at the rate of 0.2 m3/min, how fast is the water level rising ...

calculus
Find a number x0 between 0 and pi such that the tangent line to the curve y = sin x at x = x0 is parallel to the line y = -x=2. I get that for both lines to be parallel to each other their slopes need to be the same. I found -1/2 = cos(x) but I get stuck here. What ...

calculus
So y'(0) = 0 because there is a horizontal tangent at x = 0?

calculus
Find a function f such that the curve y = f(x) satisfies y'' = 12x, passes through the point (0,1), and has a horizontal tangent there. I can use the anti-derivatives to get y = 2x^3 + Cx + D but I don't know how to get C even though I know D = 1.

physics

calculus
y = x^3*

calculus
The point (1,5) isn't on the graph of y^x^3. It is just a point on the tangent of the graph y = x^3. Sorry if I wasn't clear before.

calculus
Find the equation of a straight line that passes through a point (1,5) and tangent to curve y = x^3

calculus
A man starts walking north at 4ft/s from a point P. Five minutes later a woman starts walking south at 5ft/s from a point 500 ft due east of P. At what rate are the people moving apart 15 min after the woman starts walking? I'm confused about the diagram and what to do ...

U.S. GOVERNMENT
amendment

calculus
1 and 3

chemistry
1,000,000

chemistry
asdff

math
asin^1(x)+15

Physics

physics
5/8L is the answer for future students who is taking physic class. yw

physics
it's not 3/4L or 1/4L

Chemistry

physics
DENSITY=MASS/VOLUME =24/4=7

Math; Complete the square for the expressions
I meant, "Why isn't (25/2)^2 (25/4)?"

Math; Complete the square for the expressions
I have a number of problems I'm having problem with but they start with the example given in the book 2x^2 - 10x =2(x^2 - 5x) =2{[x-(5/2)]^2 - [(5/2)^2]} =2[x-(5/2)]^2 - (25/2) Why isn't (5/2)^2 (25/4)? I'm struggling with the exercises as well. 3x^2 - 24x I get 3(...

Physics
Acceleration is 5.2

Math(College Algebra)
Thanks

physics
aef

Finance
378448

physic
3 meters tall

chem
How does a gas differ from a liquid with respect to the following property: Ability to mix with other substances of the same phase to form homogeneous mixtures Gases form homogeneous mixtures with each other regardless of the identities or relative proportions of the component...

Science
to go away by a chemical reaction

AP Physics
dfsa

fin. am I correct?
DCL= % Change in EPS/ % Change in Sales = DOL x DFL

Biology
lol, BGYA02 at UTSC. I'm doing that assignment too :P

English grammar
In the following sentence, what part of speech is the word "spent": This meant time spent working was wasted.

english
Concerning my past question, is "working" the only word in the gerund phrase and my teacher said that it "working" wasn't a DO. No one in my class could figure out the answer.

Study Tips
Sit in your own quiet place without any noise. If you don't get distracted, you can listen to soft music which helps calm your nerves or tension. Scientists also prescribe lighting a mint smelling candle or something that smells minty to help stimulate your mind.

English
What is the gerund phrase and does it act as a direct object, subject, or etc. in the following sentence: This means time spent working was wasted.

biology test
Numbers 2 and 3 are right for sure. I don't know about number 1

MATH
HAHAHAHAAHHAHAHAHAHAHAAHHAHAH

math
x = 2 y = 1/2 now stop posting the same question 20 billion times.

C++
#include <iostream.h> #include <stdlib.h> int main ( ) { int choice; cout << "Computer Repair" << endl; cout << "\n Does your ailing computer beeps multiable times at startup?" << endl; cin >> choice; switch (choice...

Physics
4.8 m/s^2

Physics
aveagg