Rony
Most popular questions and responses by Rony
physics
Resistors R1, R2, and R3 have resistances of 15.0 Ohms, 9.0 Ohms and 8.0 Ohms respectively. R1 and R2 are connected in series, and their combination is in parallel with R3 to form a load across a 6.0V battery. What is the total resistance of the load?
asked on February 18, 2010 
social study
A comparison of the average temperatures on any given day at points z,x, and U on the glove would probably show that the temperature at point X is? 1 warmer than at z and cooler than at U 2 warmer than at z and cooler than at U 3 cooler than at z and
asked on September 24, 2012 
math(advanced algebra&trigonometry)
If θ is an angle in standard position and its terminal side passes through the point (−3,2), find the exact value of cscθ . I know the answer...but i want to know how you get the answer... The answer is radical 13/2
asked on March 28, 2010 
physics
A 15.0 Ohms resistor is connected in series to a 120V generator and two 10.0 Ohms resistors that are connected in parallel to each other. What is the total resistance of the load? What is the magnitude of the circuit current? What is the current in one
asked on February 17, 2010 
math(advanced algebra&trigonometry)
the expression cos4x cos3x + sin4x sin3x is equivalent to which one of the following is the answer: 1) sinx 2) sin7x 3) cosx 4) cos7x
asked on March 27, 2010 
Chemistry
The number of Pb atoms per unit cell
asked on January 3, 2010 
math(advanced algebra&trigonometry)
the playground at a daycare center has a triangularshaped sandbox. Tow of the sides measure 20 feet and 14.5 feet and form and included angle of 45 degree. Find the length and the third side of the sandbox to the nearest tenth of a foot.
asked on April 15, 2010 
physics
What is the force between two charged spheres 1.25 cm apart if the charge on one sphere is 2.50 C and the charge on other sphere is 1.75 X 10^8 C
asked on February 16, 2010 
physics
A potential difference of 0.90 V exists from one side to the other side of a cell membrane that is 5.0 NM thick. What is the electric field across the membrane?
asked on February 18, 2010 
physics
a potential difference of 0.90 V exists from one side to the other side of a cell membrane that is 5.0 nm thick. What is the electric field across the membrane?
asked on February 16, 2010 
math(advanced algebra&trigonometry)
The Vietnam Veterans Memorial in Washington, D.C., is made up of two walls, each 246.75 feet long, that meet at an angle of 125.2°. Find, to the nearest foot, the distance between the ends of the walls that do not meet.
asked on April 10, 2010 
math (precalc)
Solve for x: 1. 3^2x+3^x+14=0 2. log3(x=12)+log3(x+4)=2 3. lnx+ln(x+2)=4 4. 3*4^x+4*2^x+8=0
asked on April 18, 2010 
Math
The weekly rental cost of a 20 foor recreational vehicle is $129.50 plus $0.15 per mile. Find a linear function that express the cost C as a function miles driven m.  What is the rental cost if 860 miles are driven? How many miles were driven if the
asked on March 7, 2010 
math(advanced algebra&trigonometry)
If a is an angle in standard position and its terminal side passes through the point (3,2), find the exact value of csc a. Answer: radical 13/2
asked on April 3, 2010 
physics
Two resistors, one 12Ohms and the other 18 Ohms, are connected in parallel. What is the equivalent resistance of the parallel combination?
asked on February 17, 2010 
Math
A shoe manufacturer determines that the annual cost of making x pairs of one type of shoe is $30 per pair plus $100,000 in fixed overhead costs. Each pair of shoes that is manufactured is sold wholesale for $50. a. Find the equations that model Revenue and
asked on March 15, 2010 
math (precalc)
Analyzing a Stock. The beta, B of a stock represents the relative risk of a stock compared with a market basket of stocks, such as Standard and poor's 500 Index of stocks. Beta is computed by finding the slope of the line of best fit between the rate of
asked on March 31, 2010 
math(advanced algebra&trigonometry)
find, to the nearest minute, the angle whose measure is 3.45 radians.
asked on March 27, 2010 
acconting
purchased a machine of Rs. 1000000 on 1/1/13, the service life of the machine is 10 years. The company calculate depreciation on straight line basis, which is = cost of the asset/no.of years
asked on September 7, 2014 
marketing
she purchase a lamp for Rs. 900 and sell it for Rs. 1500, determine the following a)rupee markup, b)markup percentage on cost, c)markup percentage of selling price
asked on January 20, 2013 
math(advanced algebra&trigonometry)
A circle has a radius of 4 inches. In inches, what is the length of the arc intercepted by a central angle of 2 radians? which of the following is the answer: 1) 2 radian 2) 2 3) 8 radian 4) 8
asked on March 27, 2010 
Math
Find the zeros of f(x)=(x1)^2 + 5(x1)+4
asked on March 7, 2010 
Math
f(x)=2x^2+1 and g(x)=3x2 find f(x+h)f(x)
asked on March 7, 2010

chemistry 32
Final conc=(Initial volm 1.0mL*initial conc 0.1M)/(Final volm 10mL)= 0.01M Ans=0.01M
posted on June 22, 2016 
Chemistry
45g/36.5g/mol= 1.233mola*1000/1500= 0.822M
posted on June 22, 2016 
chemistry
C1V1=C2V2 law can be applied because the ratio is 1:1
posted on June 22, 2016 
Science
it is cool
posted on May 11, 2016 
Physics
F = MA F = qv*B ma = qvb a = qbv/m m = mass of electron q = charge of electron
posted on March 25, 2014 
Statistics
Please display answer here
posted on May 16, 2013 
social study
Z located on the top of the globe X located in the center of the globe U located almost in the bottom of the globe please help
posted on September 26, 2012 
math(advanced algebra&trigonometry)
i know... a^2=b^2+c^22bc cos A but i didn't get the correct answer...which is 14 is it like a^2=20^2+14.5^22(20)(14.5) cos135
posted on April 15, 2010 
math(advanced algebra&trigonometry)
i know the answer...it is 197º40’ but i want to know how you get the answer... some one plz help... thanks
posted on March 28, 2010 
math(advanced algebra&trigonometry)
it is cosx thanks
posted on March 28, 2010 
Math
Find the real zeros of f(x)=(x1)^2 + 5(x1)+4
posted on March 7, 2010 
physics
some one help me with this question..plz.. Thank You.
posted on February 20, 2010 
physics
i know when its paralle 1/Req= 1/R1 + 1/R2...
posted on February 17, 2010 
physics
r is equal 1.25cm
posted on February 17, 2010