# Posts by AR

Total # Posts: 37

physics
Two point charges of magnitude +3.0 nC and +2.0 nC respectively are placed 2.0cm apart. Calculate the resultant electric field strength at their midpont E= E1 + E2

math
85

physics
You are traveling in a convertible with the top down. The car is moving at a constant velocity of 17.5 m/s, due east along flat ground. You throw a tomato straight upward at a speed of 13.0 m/s. How far has the car moved when you get a chance to catch the tomato?

Chemistry
no the answer isnt 26.98.. its 44.45ish first do the aluminum: 26.98 x (1 mol Al/26.98 g Al) x (2 mol AlCl3/2 mol Al) x (133.5g AlCl3/ 1 mole AlCl3) = 133.5 then the chlorine gas: 35.45 x (1 mol Cl2/70.9g Cl2) x (2 mol AlCl3/3 mol Cl2) x (133.5/1 mol) = 44.45

Quantum Physics
thank you!!!

Quantum Physics
Thank you!!

Quantum Physics
Dear friends, I tried this: 5c)(1/sqrt(k),1/sqrt(k)) but doesnt work... Anyone for 5c and 5a???

Quantum Physics

Quantum Physics
hikikomori,Sorry, do you have answer for the 3A? 2? 4c?

Quantum Physics
hikikomori, do you have answer for the 3A? 5? 7? 2? 4c?

Quantum Physics
SOMEBODY KNOW ANSWER FOR: 3A? 5? 7? 2? 4C?

Quantum Physics

Quantum Physics

Quantum Physics
What is the matrix (4x4) for ZX (Z applied on the first qubit and X applied on the second qubit)?

math
24

Chemistry
Copper

algebra 1 stat question
fastest recorded speeds of various large wild cats (miles per hour) 70,50,30,40,35,30,30,40,15. The standard deviation of is 14.01 and the mean is 37.7 I have created a dot plot of the data and now I need to find out within how many standard deviations of the mean does all the...

algebra 1
I have found standard deviation and the mean for a data set and have created a plot of the data now I have to find within how many standard deviation of the mean does all the data fall and I am not sure how to do this

math-true/false
true

math
1. To determine the number of deer in a game preserve, a conservationist catches 309 deer, tags them and lets them loose. Later,324 deer are caught ; 162 of them are tagged. How many deer are in the preserve? 2. q+9/3 + q-5/5 = 14/3 3. 6/v =9/v -1/11 4. x/x+7 -7/x-7 = x²...

algebra
I need help with rewriting a relation so it is a function!!!!! for example { (1,3), (-8, 7), (2,3), (1, -6), (0,0), (5,3) } I am lost and need help quick

algebra
I need help with rewriting a relation so it is a function!!!!! for example { (1,3), (-8, 7), (2,3), (1, -6), (0,0), (5,3) } I am lost and need help quick

algebra
What are the similarities and differences between functions and linear equations?

Math
What are the similarities and differences between functions and linear equations? How do you graph functions on a coordinate plane? Is there an instance when a linear equation is not a function? Provide an example. Write a function for your classmates to graph. Consider ...

Math
What are the similarities and differences between functions and linear equations? How do you graph functions on a coordinate plane? Is there an instance when a linear equation is not a function? Provide an example. Write a function for your classmates to graph. Consider ...

consumer math
Rufus works an average of 46 hours each week. He gets paid \$5.70 per hour and time-and-a-half for all hours over 40 hours. What is his annual income?

math consumer
Zoe's gross income is \$16,960. His medical expenses for the year amounted to \$812.35. If he can deduct only the amount over 7 1/2% of his gross income for medical expenses, how much can he deduct for medical expenses? 2)Lola has a two-year lease that requires her to pay \$...

consumer math
Nikki borrowed \$500 at 9% interest for 12 months under a monthly installment plan. She must pay \$8.7453 per \$100 each month for 12 months. How much is her monthly installment payment?

math 10
Trisha earns \$17,500 per year. If she has 30% withheld for deductions, what is the net amount of her biweekly paycheck?

math
Missy bought 300 shares of GAM Corp. for 14 1/2 per share. What was the total purchase price of the stock if she had to pay a 1% commission to her stockbroker?

math
Shay settled on a price of \$8,950 for a new car. The dealer had to add 5% sales tax to this price, but allowed a \$1,000 trade-in for Shay's old car. Although not a universal practice, please add the sales tax to the price of the new car first and then deduct the trade- in ...

1o math
Scott charged a \$568 purchase on his credit card. The first month he paid \$200. The second month's statement included a 1.75% monthly finance charge, computed on the unpaid balance method. What was the total amount due on the second statement?

math
Saul has an account with a department store. His daily balance for the first 11 days of April was \$225. His daily balance for the next 6 days was \$262.22. For the last 14 days it was \$297.33. What was his finance charge if the store used a rate of 2%?

math 10
Theo deposited \$1,250 in a savings account that pays 6% interest, compounded quarterly. What was his balance at the end of the second quarter after the interest had been added?

MATH
Delia works from 8:00 A.M. to 4:30 P.M. and has one hour each day for lunch. How much does she earn each week if she gets paid \$4.80 per hour?

AP US History
"In what ways and to what extent did constitutional and social developmetns between 160 and 1877 amount to a revolution?" That's the DBQ Question I have to answer. Once I get the ideas flowing I'll know how to incorporate the documents. I have an idea for my ...

Chemistry
Calculate the theoretical yield of MnO3 when 2.0 moles of Mn react with 2.0 moles O2. Write a balanced equation for the reation.

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