Sunday
May 1, 2016

# Posts by Arnold

Total # Posts: 49

Science physics
a machine was used to lift a load of 30N through a distance of 2metres. the effort applied was 10N through a distance of 8metres. calculate the mechanical advantage
June 25, 2015

statistics
test of one proportion
March 14, 2015

physics
5000J of heat is supplied to 10kg of water at 30degrees. What will be the water's final temperature
January 7, 2015

Algebra
December 2, 2014

CAL
The slope of the tangent line to the graph y= x^3/3-x at the point (1, -2/3) So I plugged this into y= and I found the (1,-2/3) point but I don't know what to do next, can you help?
November 18, 2014

Physics question
Ohh okay, I kind of thought so but I was not sure, thanks!
November 16, 2014

Physics question
What are some examples of vector calculations in travel in the real world. I can't really think of some that have to go with travel. I can see how vector calculations could happen in sports..But I cant really see how in travel. Can you help me?
November 16, 2014

physics1015(applied mechanics)
The 1.2-Mg helicopter is traveling at a constant speed of 50m/s along the horizontal curved path while banking at ƒÆ = 30∘. Part A Determine the force acting normal to the blade, i.e., in the yŒ direction.
August 21, 2014

L.A.
Thank you!!
December 28, 2013

L.A.
I look all of them up and I know it is C
December 28, 2013

L.A.
Oh then its D
December 28, 2013

L.A.
Using the image of a dove to represent the idea of peace in a poem is an example of A.Meter B.Rhythm C.Symbolism D.Figurative Language
December 28, 2013

Physics
A ray of light in air has an angle of incidence to the normal of 45° into a piece of glass (1.5). What is the angle of refraction?
March 6, 2013

Math
Lou owes Rick \$62. This is half the cost of a stereo they bought less \$5 that Rick owed Lou. How much did the stereo cost? So the stereo cost = \$62 x 2 + \$5?
December 18, 2012

Because, I was told we wern't allowed to use other sites to help us on our tests!!!
December 14, 2012

You need to ask a teacher for help. I just took the same test. And you are in Connections Academy, am I right?
December 14, 2012

math
boat is traveling at 17 knotical miles an hour how far will you have gone in 12 minutes
November 10, 2012

calculus
1) f'(t)=2*e^2t*(sec(e^2t))^2 + 2*e^tan2t*(sec(2t))^2 2)F'(t)=e^(8tsin2t)*(8sin2t+18tcos(2t))
October 8, 2012

Calculus
(L'Hopital's Rule) lim y->2(sqrt(y+2)-2)/(y-2)= lim y->2 1/2*sqrt(y+2)= 1/2*sqrt(2+2)= 1/4
October 8, 2012

math
125 in3
September 6, 2012

math
find a formula for theta , the angle formed by the intersection of L1 & L2 let L1 and L2 be non parallel lines of slope m1 and m2. m1>m2>0
March 24, 2012

american history
Sir George Grenville, King George's Chancellor of the Exchequer, enacted the Revenue Act of 1764 to raise revenue for maintenance of the British Army in America. In the colonies, it was commonly known as the _______ Act.
March 19, 2012

chem
Sorry I wrote that wrong. The exact question from the textbook says, 'Comment of the effect of concrentration of reaction time.' I don't really understand the question.
January 7, 2012

chem
what effect does concentration have the reaction time and what effect does it have on the reaction rate?
January 7, 2012

chemistry
this is a lab i am working on and this is what is says: Solution A is mixed with water to produce solutions of varying concentration. These altered concentrations of solution A is added to a set amount of solution B and the reaction times are noted when the solutions are mixed...
January 5, 2012

medical Coding
I have since been corrected about my infusion codes according to AHIMA coding clinic workout: 972.9 E950.4 43753 96374-59 96367 96366 j1610 x 20 j7060
November 22, 2011

medical Coding
I forgot the J codes: J7070 j1610 x 20
November 22, 2011

medical Coding
972.9 E950.4 43753, 96365, 96366, 96375
November 22, 2011

Mechanics
Why does an anisotropic shaft split axially under excessive torque?
October 2, 2011

Physics
Nuclear fusion reactions require that positively charged nuclei be brought into close proximity, against the electrostatic repulsion. As a simple example, suppose a proton is fired at a second, stationary proton from a large distance away. What kinetic energy must be given to ...
September 20, 2011

Physics
Nuclear fusion reactions require that positively charged nuclei be brought into close proximity, against the electrostatic repulsion. As a simple example, suppose a proton is fired at a second, stationary proton from a large distance away. What kinetic energy must be given to ...
September 20, 2011

Physics
Nuclear fusion reactions require that positively charged nuclei be brought into close proximity, against the electrostatic repulsion. As a simple example, suppose a proton is fired at a second, stationary proton from a large distance away. What kinetic energy must be given to ...
September 20, 2011

Algebra
If a farmer has 280 feet of fence and wants to build a rectangle that the width is two-thirds of the length how do you calculate the deminsions?
July 11, 2010

Chemistry
The vapor pressures of ethanol (C2H5OH) and 1-propanol (C3H7OH) are 100 mmHg and 37.6 mmHg, respectively. Assume ideal behavior and calculate the partial pressures of ethanol and 1-propanol at 35 degrees Celsius over a solution of ethanol in 1-propanol, in which the mole ...
March 18, 2010

ms sue
9. Choose the sentence that has a compound predicate. A. Swimming and golfing are Jim's favorite sports. B. Sue and I will listen. C. We went home to eat and to study. D. Sandy washed and ironed her clothes.
March 16, 2009

Find the reciprocal of a. - 1/10 (-4-7) b. ½ / ¼ (hint: solve these first then find reciprocal of the answer)
November 13, 2008

math
Find the reciprocal of a. - 1/10 (-4-7) b. ½ / ¼ (hint: solve these first then find reciprocal of the answer)
November 13, 2008

alegebra
Evaluate a. |101 – 91| - |81– 95| b. (7.6 ) (9)( ¼)
November 13, 2008

Algebra
Find the reciprocal of a. - 1/10 (-4-7) b. ½ / ¼ (hint: solve these first then find reciprocal of the answer)
November 13, 2008

Chemistry
When you use a spectrophotometer, should you set the wavelength of light to be the same color as that of the solution, or would a different color be more appropriate? Explain.
November 11, 2008

math
Can someone help me with this problem? Find the value: (469)° * (-2)^3
November 1, 2008

math
how do i solve this? x +(12/x)=12 and (5/x+4)=4+(3/x-2)
August 28, 2008

math riddle ALGEBRA WITH PIZZAZZ
when do sky divers use decimals?
April 6, 2008

Calculus
If M is 30% of Q, Q is 20% of P, and N is 25% of P, then M/N equals which of the following? (a) 3/250 (b) 3/25 (c) 1 (d) 6/5 (e) 4/3 When I work this problem I keep getting 6/25, but that is not one of the choices. Any help would be greatly appreciated.
November 28, 2007

Calculus
The radius of Earth at the equator is approximately 4000 miles. Suppose a jet flies once around Earth at a speed of 5000 miles an hour relative to Earth. If the flight path is a negligible height above the equater, then among the following choices, what is the best estimate of...
November 27, 2007

Calculus
If M is 30% of Q, Q is 20% of P, and N is 25% of P, then M/N equals which of the following? (a) 3/250 (b) 3/25 (c) 1 (d) 6/5 (e) 4/3 When I do this problem I keep getting 6/25, but that is not one of the choices. Any help would be greatly appreciated.
November 27, 2007

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