Recent content by xChee

Homework Statement So my test is tomorrrow, and I have troubles with limiting reagents, I can get them right sometimes with the 2 reactant questions, but not always with 3... so the question is Q: What mass of phosphorus (P4) is produced when 41.5g of calcium phosphate, 26.5g of silicon...

hey guys, I am a high school student who recently graduated from high school. I am entering my first year of University at the University of Ottawa, doing a bachelor of science specializing in biochemistry. But, after first year I desperately want to transfer to U of T when entering second year...

Homework Statement In a population on fish, 40 have red eyes and 260 have blue eyes. Allele for red is dominant over blue alleles. Use hardy Weinberg principle to calculate the frequency of the white and red allele. Homework Equations p2 + 2pq + q2 = 1 q + p = 1 The Attempt at a...

In a betting game a player gets to 3 chances to play after betting 6 dollars. The player must roll a 4 on a die. If he doesn't he loses. If he does then he can advance to the next round where he can then draw 3 cards from a deck of 8 consisting of 2 kings, two queens, two jacks and 2 jokers. If...

no... :l

Homework Statement An airplane travels N40∘E at an airspeed of 1000km/h. Measurement on the ground shows that the plane is traveling N45∘E at a speed of 1050 km/h. Calculate the velocity of the wind. Homework Equations Vg = Va + Vw The Attempt at a Solution so i know we're...

Homework Statement Need help with a question ... .__." q: if the magnitude of a=2 and the magnitude of 5a-2b= 7.7, and the angles between the vectors a and b is 50 degrees determine the magnitude of b. Homework Equations The Attempt at a Solution first I drew a diagram...

to lie on the y-axis z and x have to be 0. the the coordinates should be [0, y, 0]? i don't get step 2 though... stuck... edit; nvm do you just do, (2-0)^2 + (-1 -y)^2 + (1-0)^2 = (0-0)^2 + (1-y)^2 + (3-0)^2 and solve for y? and y should be 1?

1 on the x axis, 0 on the y and 2 on the z so the answer is 0 ? :s

Q1: so the answer is, [-1, -2, 7]? Q2: so to get vectors in two space you need to sets? so... [7,9] and [13,2]? Q3: m= 3? :D Q4: do you just express vector u in terms of the sin or cos law? Q5: oooh k Q6: the mid points are 1, 0, 2, i got that but idk what to do with those numbers...

i'm probably posting in the wrong section but idk where else to post this :/ I need help with a few questions ! Homework Statement Q1: if vector AB =[3,-5,7] and A(-4, 3, 0), state the coordinates of B Q2: State a set of vectors that spans R^{2} other than i or j Q3: let a...

Need someone to check if my answers to these probability questions are right :$ Q1: Two jokers are added to a standard 52 card deck. The deck is then shuffled, what is the probability that someone draws 5 cards and two of those 5 cards happen to be both jokers. is this what you do? 5C3 / 54C5...

Homework Statement The printed area of a page in a book will be 81cm^2. The margins at the top and bottom of the page will each be 3cm deep. The margins at the sides of the page will each be 2cm wide. What page dimensions will minimize the amount of paper? Homework Equations Area=...

Need help with two 2D momentum questions. Q1: Two automobiles collide at an intersection. One car of mass 1.4x103 kg is traveling at 45km/h [south]; the other car of mass 1.3x103 ks is traveling at 39 km/h [east]. If the cars have a completely inelastic collision, what is their velocity after...