Wednesday
December 11, 2013

# Posts by Jess

Total # Posts: 792

chemistry
Please help. My teacher never went over crystal lattices and the book doesn't cover it either :( Copper crystallizes in a face-centered cubic lattice. If the edge of the unit cell is 351pm, what is the radius of the copper atom?

Social Studies
In what ways did China And Europe parallel each other in their development until the sixth century CE? How did they diverge after that?

math
in order to increase the mean of 6 numbers by 3, what would the total sum of the increase be? A. 3 B.9 C.12 D.16 E.18

MATH urgent
Hello!! 1. find the third derivative of f(t)=(t-1)/(t+1) 2. y= x^(x^2) ; dy/dx please help! thank you!

Fats help maintain your cell membranes. (1 point) True False 12. Your body does not use energy when you sleep. (1 point) True False 13. People with anorexia nervosa eat large amounts of food and then purge. (1 point) True False 14. Your body image is the way others see your bo...

maths
Let p(x) = 1 + 4x + 2x^2 + 2x^3 in Z5[x]. Find all roots of p(x), and write p(x) as a product of irreducible polynomials.

maths
differentaite w.r to x h(x) = arcosh(x^3 + 2).

pre cal
How lnog will it take for an investment of \$1000 to double in value if it earns 5% coumpounded weekly?

Maths
in the following rings find all units, Zero divisors and idompotent elements and determine whether the ring is a field. a)Z2 b)Z5 c)Z10 NB z is integers( positive or negatives including zero z is integers( positive or negatives including zero

physics
An object moves along a circular path with a constant speed, |⃗vo|. (Semi Circle with point A on one side point B on the other. Looks like a 90 degree angle with points A and B on either side of the hypotenuse.) The average acceleration in going from A to B is 1. zero 2....

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