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December 21, 2014

Posts by TOM


Total # Posts: 1,118

Making a job table
make a table lay out day by day plan use as a job aid
December 10, 2006

Honors French 2
yeah..I have to write about a famous French person. What was Napoleon Boneparte's effect on the society and world at the time(monde du temps not sure what the right translation is) Thank you for using the Jiskha Homework Help Forum. First of all "monde du temps" ...
November 27, 2006

Optimization
A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of the rectangle. What is the area of the largest possible Norman window with a perimeter of 45 feet? so the perimeter is: pi*r + 2r + 2h = 45. h= (45 - ...
November 24, 2006

Algebra 2/Trig.
I forgot some stuff from my 7th grade algebra class about complex numbers...like what do you do with a problem like this 5+5i 3-i divided by + divided by 2-i 4+3i thanks.(divided by refers to dividing line in a fraction) In each case, RATIONALIZE the denominator. Here is the ...
November 19, 2006

Physical Science
If an egg falls into apple sauce or water, is it an inelastic collision? http://en.wikipedia.org/wiki/Inelastic_collision and http://en.wikipedia.org/wiki/Elastic_collision Then decide. Hint: yes Another hint: Did the egg bounce back up to its original height, conserving ...
November 17, 2006

Physical Science
Do liquids have momentum? Does the shape of an object affect the rate at which it will fall? Do thicker substances protect objects better than thin substances? Do liquids have momentum? yes Does the shape of an object affect the rate at which it will fall? Yes, the shape ...
November 16, 2006

physics
A 1580 kg car is traveling with a speed of 15.0 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 50.0 m? Calculate the kinetic energy: E_{k} = 1/2 m v^2 Then use that The work performed by the force must ...
November 13, 2006

english
simple subject: wind simple predicate: bit
October 24, 2006

A.P Chemistry
D. 2NO + O2 -> 2NO2 E. since only half of the moles of O2 will be consumed in the reaction there will be .176 mol NO2 and .088 mol O2 so... PNO2 = .176mol(.08296)(298K)/5L = .8608 atm PO2 = .088mol(.08206)(298K)/5L = .4304 atm PNO2 + PO2 = Total Pressure = 1.2912 atm
October 22, 2006

Related Rates
Water is leaking out of an inverted conical tank at a rate of 500 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 10 meters and the diameter at the top is 4.5 meters. If the water level is rising at a ...
October 14, 2006

Math
7^2006 Solving problems with "to the power of" IT works better if you post a problem you have having difficulty with, and explain what you are having difficulty with. Rob has 124 cans of sweet corn to stack on the shelf.If he puts 6 cans in each row,about how many ...
October 8, 2006

calculus
Using the 4 step method fidn teh derivative of F(x) =1/(x^2) 1) I got /(x^2+2xh+h^2) 2)2xh+h^2/(x^2+2xh+h^2)(x^2) 3)2x+h/(x^2+2xh+h^2)(x^2) 4)1/x I don't understand why I got this problem wrong on my test can you explain the correct way? The second step is wrong, it should...
October 2, 2006

sciecne
In unit-vector notation, what is teh sum of vector a =(4m)i + (3m)j and vector b= (-13m)i +(7m)j? a)I got (27m)i +(10m)j but the book said it should have been (-9m)i +(10m)j b)what is the magnitude and direction of vector a + vector b (relative to i)? to find the magnitude i ...
September 30, 2006

Math
thanks for the answers, but I need to know how to solve the problems, so I can finish the remainder of my homework. Use a power of ten to change each to a decimal. 2 1/2 4 1/25 I need to learn how to solve these types of problems. I was out of the room when the teacher ...
September 20, 2006

Math
Please exlain how I "use the power of ten to change each to a decimal". I was in a band lesson when my math teacher taught this. Thanks. 4 over 50 9 over 25 (fractions) 4/50= 0.08=8.0*10(exponent-2),exponent-2 means to move the decimal point to the left 2 spaces.. 9/...
September 20, 2006

Algebra
(-16)^-2/3
September 14, 2006

hispanic american Diversity
I am needing to find information on identifying the linquistic, political, social economic, religious and familial conventions of four hispancic groups living in america one Mexican Americans, Puerto Ricans, Cubans, and Latinos can anyone help me where to get started on this i...
August 12, 2006

physics
How is it that contact lenses can be thinner than bifocales but just as effective at fixing someone's sight? The power or 1/f of contact or framed glasses for the same person needs to be the same. Power is proportional to (N-1)[1/R1 - 1/R2]. N is the index of refraction of...
July 15, 2006

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