Sunday

September 25, 2016
Total # Posts: 113

**physics**

A woman finds the front windshield of her car covered with ice at -12.6°C. The ice has a thickness of 4.80 10-4 m, and the windshield has an area of 1.25 m2. The density of ice is 917 kg/m3. How much heat is required to melt the ice?

*April 14, 2008*

**English**

I need help identifying the main arguments in the essay as well as the supports used. I believe the thesis is: If children are taught their place in the environment they will look at other species with a sense of fellowship and community. I am also supposed to evaluate the ...

*March 15, 2008*

**math: repost with corrections**

p. 942 #5 This is a three-part question: a. the graph y = f(x) in the xy-plane has parametrization x=x, y=f(x), and vector formula r(x) = xi + f(x)j. Use this to show that if f is twice-differentiable, then k(x) = ((absvalue f''(x))/[1+((f'(x))^2]^3/2 b. use the ...

*December 10, 2007*

**math**

Hi This is a three-part question: a. the graph y = f(x) in the xy-plane has parametrization x=x, y=f(x), and vector formula r(x) = xi + f(x)j. Use this to show that if f is twice-differentiable, then ((absvalue f''(x))/[1+((f'(x))^2]^3/2 b. use the formula for k in...

*December 8, 2007*

**Cal**

circle x^2 +y^2 = 1. r(t) = (sint)i +(cost)j at both pi/4 and pi/2 Find velocity & acceleration Thx!

*December 8, 2007*

**social studies**

why was george washington important

*September 4, 2007*

**9the Grade Honours English**

I need info on Aphrodite,Apollo,Atalanta,Perseus,Cerberus and the Minotaur for my honors English class.I have to make a book about them two pages per person.Please help!!! The links in this previous response by SraJMcGin should give you all the information you need: http://www...

*July 13, 2007*

**Math**

The greater of two consecutive even integers is six less than twice the smaller. Find the integers. The greater of two consecutive even integers is six less than twice the smaller. Find the integers How about x + 2 = 2x - 6 almost .. it's x + (x+2)=2x-2

*June 3, 2007*

**Math**

The greater of two consecutive even integers is six less than twice the smaller. Find the integers. Let the smaller be x. That means that the larger is x+2. From your statement x+2=2x-6 Solve for x. I hope this helps. Thanks for asking.

*June 3, 2007*

**Math/Calculus**

integrals of S 2-4 ((3*y^5)/(5*(y^3 -2)^(1/4)))*dy

*May 28, 2007*

**Science help please...**

Each element has a different set of energy levels. Use this fact to explain why the colour of the light emitted by an element in the gaseous stare is characteristic of the element? Ive read and researched Quantum physics for over a week now and i still dont understand this ...

*March 5, 2007*

**Science**

A drop of oil (volume 0.05cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to cover an area of 40cm2. Assume that the oil film has a uniform thickness equal to the diameter of a oil molecule. Calculate the diameter of an oil ...

*March 5, 2007*

**pre-algebra**

Which is heavier, The Thrust SCC that is 54 ft long and weighs 7 tons or the Spirit of America that is 47 ft long and weighs 4 tons?? The numbers need to be put into an inequality equation! Unless you have not adequately stated your question, no equation is needed. The answer ...

*July 6, 2005*