Lynette
Popular questions and responses by Lynette
math
An element has a halflife of 30 years. If 1.0 mg of this element decays over a period of 90 years, how many mg of this element would remain? Begin amount is 1.0 elapsed time is 90y half life 30 years n=9/30 n=3 90/2^2 90/8 = 11.25mg thinking it's wrong
asked on March 24, 2017 
physics
Two point charges are on the yaxis. A 3.0 µC charge is located at y = 1.35 cm, and a 2.04 µC charge is located at y = 1.50 cm. (a) Find the total electric potential at the origin (V) (b) Find the total electric potential at the point having
asked on September 9, 2010 
Science
An element has a halflife of 30 years. If 1.0 mg of this element decays over a period of 90 years, how many mg of this element would remain? Begin amount is 1.0 elapsed time is 90y half life 30 years n=9/30 n=3 90/2^2 90/8 = 11.25mg thinking it's wrong
asked on March 24, 2017 
physics
Suppose that you wish to fabricate a uniform wire out of 0.900 g of copper. Assume the wire has a resistance R = 0.500 , and all of the copper is used. (a) What will be the length of the wire? (m) (b) What will be the diameter of the wire? (µm)
asked on September 17, 2010 
Science
1. A convex mirror with a focal length of 20cm forms an image 15cm behind the surface. If the object height is 1.2cm what is the image height? 2. An object is placed 10cm in front of a mirror and an image is formed that has a magnification of 2. Which of
asked on July 26, 2011 
Math
Solve the system equations y=4x+8,x^2+7x20 I'm truly lost
asked on March 27, 2017 
Precalculus
1.Write the expression as a sum or difference. cos(5x)cos(4x) 2.Write the expression as a product. cos(4x)cos(12x)
asked on December 5, 2010 
Algebra
If you walk 4/5mile and then jog 3/8 mile what is the total distance covered how much farther did you walk than jog
asked on February 14, 2017 
Physics
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 28.0 s. (a) How tall is the tower? m (b) If this pendulum is taken to the Moon, where the freefall
asked on December 5, 2010 
algebra 1
Find the radius if a circular lid with an area of 12inch ^2. using (yh^2 (yk)^2=r2 I'm pretty confused any help would be great.
asked on March 31, 2017 
physics
A highvoltage transmission line with a resistance of 0.28 /km carries a current of 1030 A. The line is at a potential of 720 kV at the power station and carries the current to a city located 165 km from the station. (a) What is the power loss due to
asked on September 17, 2010 
Federal Employees Union QuestionPlease Help
With respect to the powers of a federal employees union,which statement is True? 1. It can bargain to obtain better pay and benefits for employees. 2. It cannot lobby Congress for personnel policy changes. 3. It can overrule the decisions of the Office of
asked on January 23, 2007 
chemistry
a piece of iron measures 10.5cm by 5.25cm by 10.2mm and the density of theiron is 7.86g/cm cubed. what is the mass of the iron?
asked on May 12, 2014 
accounting
Moreno Industries has adopted the following production budget for the first 4 months of 2013. Month Units Month Units January 10,000 March 5,000 February 8,000 April 4,000 Each unit requires 3 pounds of raw materials costing $2 per pound. On December 31,
asked on May 7, 2012 
physics
What is the tangential acceleration of a bug on the rim of a 12.0 in. diameter disk if the disk moves from rest to an angular speed of 75 rev/min in 4.0 s?
asked on November 21, 2009 
Chemistry
Calculate the pH of 1.7M of KCl
asked on July 4, 2012 
Physics
A spring stretches 4.3 cm when a 13 g object is hung from it. The object is replaced with a block of mass 22 g that oscillates in simple harmonic motion, calculate the period of motion.
asked on December 5, 2010 
Math
Reduce to lowest terms 4a3c  6a2b
asked on December 17, 2012 
Math
Find the points on the graph of the following function where the slope of the tangent line is equal to 5/2. f(x) = x+5/x5 (x, y) = (smaller xvalue) (x, y) = (larger xvalue)
asked on February 16, 2011 
Algebra
if $1500 grew to $1575 with 4% simple interest how long was the money in the account?
asked on September 22, 2010

History
Machine Guns for sure could wipe out a line of men.
posted on April 3, 2017 
algebra 1
I'm confused I turned it in that way and was told that wasn't the correct formula for algebra formula.So is there really a different way to write it?
posted on March 31, 2017 
Ethics in Tech
Ethics in Technology, pp.474 Answer B: Cooperative agreements
posted on March 16, 2016 
intro to computers
That is incorrect...It is not A
posted on March 9, 2015 
soc 120
#1A,#2A, #3A, #4A, #5A,#6A,#7A,#8A,#9A,#10A, #11A,#12A,#13A,#145,#15A,#16A,#17A,#18A, #19A,#20A,#21A, #22A,#23A, #24A, #25A.
posted on July 31, 2011 
physics
R=.28*165 (calc this) plug into following equation and that will give you W =I^2*R =1030^2*R b. P(loss)= IV =1030(720000)
posted on September 17, 2010 
Ethics125
i need help
posted on February 14, 2010 
CheckPoint: Comprehensive Grammar CheckPoint
1a,2a,3a,4a,5a,6b,7b,8a,9a,10a,11b,12b,13b,14b,15a,16a,17b,18b,19b,20a,21a,22b,23a,24a,25b,
posted on October 3, 2008