Monday
May 20, 2013

Posts by walt


Total # Posts: 11

Math
I want to build a landscaping block garden oval with twelve inch blocks. I want the second row to come out even. How would I figure this out.

Math
Yes, it was from yesterday, sorry if I should've just put this in that post. But thanks a bunch for checking my work.

Math
Can you check my work Please? Let N(t) be the number of bacteria after t days. Then N(t) = Pa^t for some constants P and a. Measurements indicate that N(4) = 5600 and N(8) = 362, 000 1. Write down the formula for N(t) using the rounded values of a and P. (But remember to use t...

Math
Can you Check my work please? Let N(t) be the number of bacteria after t days. Then N(t) = Pa^t for some constants P and a. Measurements indicate that N(4) = 5600 and N(8) = 362, 000. b. Write down two equations for P and a, one when t = 4 and the other when t = 8. c. Use thes...

Chemistry
How many 9.5 gram ice cubes will you have to put into 500 ml of water to cool the water from 22°C to 18°C?

Epidemiology
You are right but I'm having some difficulties

physics
A 3000 pound car is pushed 500 feet by three boys, a force of 60 pounds is required to move the car. How much work did the boys accomplish? How much work can each boy claim if he did his share?

math
A 3000 pound car is pushed 500 feet by three boys. A force of 60 pounds is required to move the car. How much work did the boys accomplish? How much work can each boy claim if he did his share?

math
How much work does a 120 pound boy do in climbing to the top of the Washington Monument - a climb of 550 feet? If the climb in problem 2 takes 20 minutes, what is the average horsepower produced by the boy?

math
The head of a round piston has a pressure of 210 psi pushing down on it. The piston is 3 inches in diameter. What is the force pushing the piston down?

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