Saturday

February 28, 2015

February 28, 2015

Total # Posts: 12

**physics**

Find the temperature at which the velocity of sound in air is 1.25 times the velocity of sound at 0 degree centigrade.
*June 17, 2012*

** urgent maths**

write the complement of: 1.(xdegree+5degree) 2.(24+a)degree 3.(1/4) right angle write the supplement of : 1.(27+a)degree 2.(7/8)right angle 3.(1.4)right angle 4.(54degree27minutes)
*May 27, 2012*

**Maths**

1.)1/x^2+x+1+2x/x^4+x^2+1=_______
*May 22, 2012*

**physics**

2.The distance travelled by a body moving with uniform acceleration in the nth second is given by Sn=3.8+0.4n,find the velocity of the body
*May 20, 2012*

**physics**

1.Moving with uniform acceleration a body covers 150m during 10sec so thet it covers 24m during the 10th sec .What is the initial velocity and teh acceleration of the body. 2.A runner travels 1.5 laps around a circular track of 50sec .The diameter of the track is 40m and its ...
*May 19, 2012*

**physics **

1.A train passes an electric post in 8sec and a bridge of length 1km in 108sec .Find the speed of the engine . 2.A runner travels at the rate o f25km/hr for 4min ;then at 50km/hr for 8minn and finally at 20km/hr for 2min .Find a) the total distance covered in km and b)average ...
*May 19, 2012*

**physics**

1.A body with an initial velocity of 18km/hr accelerates uniformly at the rateof 9cm/sec2over a distance of 200m.Calculate, a)the acceleration in m/sec2 b)its final velocity in m/s 2.The distance travelled by a body moving with uniform acceleration in the nth second is given ...
*May 19, 2012*

**physics**

1.)A rock at the blank of a coast is struck by water waves.find the frequency of the waves striking the rock,if the distance between two consecutive crests or troughs is 100m.velocity of water wave is 150m/sec. 2.)the timeperiod of a vibrating body is 0.1sec.the waves produced...
*May 18, 2012*

**physics**

1.)A radio station transmits waves of length 400m.if the speed of the waves is 3*10power8m/sec,find the frequency of the radio station. 2.)Audible range of frequencies is between 20Hz and 20KHz.Find the range of the wavelengths corresponding to these frequencies.given,velocity...
*May 18, 2012*

**physics**

i will begreatfull if u help me insolving the below problems: 1.)the time period of a pendulum clock on the surface of the earth is 6 sec.Find the timeperiod of the same pendulum on the moon.(g=9.8m/sec2) 2.)the time period of a pendulum is 6.28sec.Whay will be its lengthif g=...
*May 17, 2012*

**maths**

i will be greatefull,if you help me in answering the below problem: 1.)Prove that the bisectors of two adjacent supplementary angles include a right angle.
*May 14, 2012*

**maths**

i will be greatful to you if you help in solving the below problems: 1.)Prove that log15=log5+log3 2.)Show that log10800=4log2+3log3+2log5 3.)show that log108/605=2log2+3log3-log5-2log11.
*April 27, 2012*

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