Thursday
December 12, 2013

# Posts by andy

Total # Posts: 783

Quantum Physics
Gyus, 5 is easier than you think! It takes exactly m steps from starting superposition (ay = 1/sqrt(K), ax = 1/sqrt(k)) to get to the solution (ay = 1, ax = 0), then it takes exactly m+1 steps to get back to initial state, but after each cycle the sign changes! So it looks lik...

Statistics
The lifetime of computer chips is approximately normal with mean 1.4×106 hours and standard deviation 3×105 hours. The statistics department has 5 computers built with that chip as the main component. What is the probability that all 5 computers last longer than 1....

Geometry
Arpit is thinking of a 2-digit number where the tens digit is twice the ones digit. How many different numbers can Arpit be thinking of?

Geometry
ABC is a triangle with circumcenter O, obtuse angle BAC and AB less than AC. M and N are the midpoints of BC and AO respectively. Let D be the intersection of MN with AC. If 2AD=(AB+AC), what is the measure of angle BAC ?

computer programming
I need help with this problem please: Create the logic for a program that accepts input values for the projected cost of a vacation and the number of month until vacation. Pass both values to a method that displays the amount you must save per month to achieve your goal. Use a...

MATH
IF CATHY IS 24 YEARS OLD, HOW OLD WILL CATHY BE IN Y YEARS? Y - 24 Y + 24 24 - y 24 / Y

German
correct

Earth Science
If a sample contains 70g of Carbon 14 and 70g of Nitrogen 14, how many half lives has it undergone? (show all of your work)

algebra 1
A salesperson at a clothing store earns a 5% commission on all sales. How much commission does the sale person earn on a 300\$ sale?

Physics
Okay its like 98.8 or something...you have to convert miles per hour to meters per second. Then do (1/2)(Mass)(velocity) that'll give you your kinetic energy (work). Divide that by time to get Power. Remember, it gives you your answer in watts but Rawwaga's answers are...

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