# 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**

Anon.. What is the correct answer to the 5? please help us

**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**

Please help!

**Quantum Physics**

PLease problem 5?

**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.