Thursday
November 27, 2014

Posts by Rodrigo


Total # Posts: 15

Physics
I was given this problem, and are having problems. I am taking AP Physics and I want to be able to understand the concept. Thank you for your help. A block of mass m = 3.65 kg is attached to a spring (k = 27.5 N/m) by a rope that hangs over a pulley of mass M = 7.30 kg and ...
October 31, 2014

Calculus
lim y->2 (sqrt(y+2)-2)/(y-2)
October 8, 2012

Calculus
lim y->2 (sqrt(y+2)-2)/(y-2)
October 8, 2012

physics
A car of mass 1410 kg traveling at 26 m/s is at the foot of a hill that rises 115 m in 4 km. At the top of the hill, the speed of the car is 14 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses.
October 4, 2012

physics
A golf ball is hit with an initial velocity of 50 m/s at an angle of 39 degrees above the horizontal. How far does it travel?(horizontal distance)(g = 9.8 m/s2). I made a right triangle. Found that Vi(x)=38.857, Vi(y)=312.466, both Vf's were 0, although Vf(y) is taking ...
September 18, 2012

Physics
A ball thrown into the air lands on the same horizontal level, 31 m away, and 2.65 s later. Find the magnitude of the initial velocity.
September 17, 2012

statistics
A job in an insurance office involves telephone conversations with policyholders. The office manager estimates that about half of the employee’s time is spent on the telephone. How many observations are needed in a work sampling study to estimate that time percentage to ...
September 29, 2011

Chemistry
Given these chemical reactions: Ca^(2+)(aq) + 2IO3^(-)(aq) → Ca(IO3)2(s) Ca(NO3)2·4H2O(s) → Ca^(2+)(aq) + 2NO3^(-)(aq) + 4H2O(l) KIO3(s) → K^(+)(aq) + IO3(-)(aq) Calculate the masses of Ca(NO3)2·4H2O(s) and KIO3(s) required to make 10 g of Ca(...
January 23, 2010

Biology
A trait whose expression is affected by the presence of sex hormones is said to be a. sex-influenced b. sex-linked c. X-linked d. Y-linked I read the section multiple tmes, and the book doesn't really specify. Thanks in advance if you could answer it!
March 20, 2008

algebra
Let f(x)= -3x^4+79x^2-3x+1 ___________________ 5x^4+19x^4+2x+5 Discuss the short run behavior for f(x)and the long run for f(x).
December 7, 2007

math 162
Let f(x= -3 ________________ (x+2) (2x-5) Specify any zeros, and asymptotes of f(x).
December 7, 2007

college algebra
Let f denote an odd function and g an odd function. Decide whether the function h(x)=g(x) f(x) is even or odd.
December 7, 2007

math 162
Let f(x)= -3x^4+79x^2-3x+1/ 5x^4+19x^3+2x+5. Discuss the short run behavior for f(x) and the long run behavior for f(x).
December 7, 2007

math 162
Let f(x)= -3/(x+2)(2x-5).How do i specify any zeros, and asymptotes of f(x).
December 7, 2007

Math
(Preferably answered by tomorrow night - that's plenty of time.) Ray OB is the bisector of angle AOC and ray OC is the bisector of angle BOD. m of angle AOC = 60. Find m of angle COD. *m means "measure" Write a proof in two-column form. Given: ray DC is ...
October 1, 2007

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