Wednesday
October 22, 2014

Posts by Raju


Total # Posts: 22

maths
find the height of a pole which casts a shadow 22 cm long at a time and place where the shadow of a stick one meter long ig is 55cm
July 10, 2014

pre calculus
The age of a document is in dispute, so archaeologists test for carbon-14. Due to radioactive decay, the amount A of carbon -14 present compared to the initial amount A0 after t years is given by the formula A(t) = A0e^-0.000124t . If 72% of the original amount of carbon- 14 ...
February 8, 2014

pre calculus
A sum of $5000 is be invested in a bank. if the annual interest is 10% and compounded monthly, how long will it take for the original investment to double.
February 8, 2014

pre calculus
Which is worth more after 5 years, an investment of $1000 at 5% interest compounded semi - annually(twice a year). or an investment of $1000 at 5% interest compounded continuously?
February 8, 2014

Physics
What is the difference between converging and diverging waves? What happens to a converging wave after it has converged?
November 29, 2012

Physics
A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker move? (b) With what ...
November 27, 2012

Physics
A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker move? (b) With what ...
November 27, 2012

Physics
A point source is generating circular water waves. (a) What does the amplitude of the wave near the source depend on? (b) What happens to the amplitude of the wave as it spreads outward? (c) Why the amplitude of a wave changes as it spreads outwards?
November 27, 2012

MATHEMATICS
alpha +beta=pie/2 & beta+gama=alpha then tan alpha=?
November 14, 2012

Statistics
(c) define the limits of an interval estimate of ƒÊ as x } zƒ¿/2ƒÐ/ãn Because sigma is known
November 14, 2012

theory of machine
all answer required
August 1, 2012

theory of machine
1. the contact ratio is....... (a)zero (b)more than one (c)less than one (d)none of these 2. the ratio of maximum displacement of the forced vibration to the deflection due to the static force is known as................ (a)damping factor (b)magnification factor (c)damping ...
August 1, 2012

theory of machine
a differential band brake has a drum of diameter 800mm. the two ends of the band are fixed to the pins on the opposite sides of the fulcrum of the lever at a distance of a=40mm and b=200mm from the fulcrum. the angle of contact is 270 degree and mue = 0.2 .determine the brake ...
August 1, 2012

physics
Q8: Two sinusoidal waves with the same amplitude of 9.00 mm and the same wavelength travel together along a string that is stretched along an x axis. Their resultant wave is shown twice in fig., as valley A travels in the negative direction of the x axis by distance d=56 cm in...
January 23, 2012

math order from least to greatest
how to put 1/4, 1/6 and 1/2 in least to greatest
December 6, 2011

maths
270
August 21, 2011

Maths
1:2
August 20, 2011

AP English Language
no answer the Question..... i do't no //?
February 23, 2011

Chemistry
So do you think that H2SO4 is the better choice? Or shall I stick with CaCO3
May 30, 2009

Chemistry
sorry the rest of the choices are b. Co2 C. HClO4 D HI e H2SO4 I think its a.. since it displaces the ions
May 30, 2009

Chemistry
Stelco has been recently legislated to reduce total SO2 emissions from iron smelting operations. Select the most effective chemical reagent to desulfurize Stelco’s gas emissions a. CaCO3 b. CO2 c. HClO4 d. HI e. H2SO4 I believe the answer is A but I'm unsure with H2SO4.
May 30, 2009

science
Compare the light gathering power of a telescope with a 10-centimeter(about 4-inch) diameter mirror to that of the human eye. (Take a diameter of the pupil of the eye to be about 5 millimeters)
April 16, 2007

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