Posts by Jarin

Total # Posts: 11

Maths
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French
Thank You So Much!!!

French
hi there, i have to write a letter in French to my au-pair family(the family that i am going to work with) introducing myself, my experience with children, proficiency in French and say why i think i will be suitable for this position. do anyone have any similar example ...

physics
how many excess electrons must be placed on each of two small metal spheres placed 3.00 cm apart in a vacuum if the force of repulsion betwen the spheres is to be 0.000000008 N? how do i solve this problem??=( help please.thx. Use Coulomb's Law: F = k Q^2/R^2 The force is ...

intro-cal
a company makes x toys daily at a cost of C(x)=125+30x+2(x to the power of 2/3) dollars. what daily production level will minimize the average cost? (note define average cost as the Total cost divided by the total number of items) thx According to your definition Average Cost...

Physics
Jack rides his 213kg motor cross bike 25.3m up a 30.0 degree slope at a constant speed. what is the energy his bike expends if the frictional force opposing its movement is one-tenth its weight? Are you sure the mass is 213 kg? Shouldn't it be 21.3 kg? Or does that include...

maths
eight points lie on the circumference of a circle. one of them is labelled P. chords join some or all of the pairs of these points so that the seven points other than P lie on different numbers of chords. what is the minimum number of chords on which P lies? If chords join &...

maths
the sum of N positive integers is 19. what is the maximum possible product of these N numbers? thx. Nice problem. Let's look at some cases 1. N=2 clearly our only logical choices are 9,10 for a product of 90 It should be obvious that the numbers should be "centrally&...

English
parrots,those life spance is no longer than 20 year.... is the use of the term "no longer" correct in this sentence? or is there any other mistakes in this sentence? thx. There are several spelling and word choice errors, an error of fact, AND it is not a sentence. ...

English
hello! i have to write a short narrative in the genre of science fiction using a current political issues as a starting point. can someone please name and give examples of some the current political issues for me please? thank you for the help! thank you ! Current political ...

Exam
Hello I have exams coming up and I was wondering if any of you guys know where I can get some practice exam papers or questions that I can do or download from the internet. I am in year 11, high school, and I have exam on geometry and trigonometry, intro calculus, English and ...

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