Karen

the length of a wire between two ends of a sonometer is 105. where should two bridges be placed so that the fundamental frequencies of three segments are in ratio of 1:3:15.

The frequency of the fundamental tone of 1 m long wire of a sitar is 256 Hz. At how much distance from the upper end should the wire be pressed to produce a note of frequency 384 Hz ? (the answer is 1/3 m)

Show the steps

The difference in frequencies between the second

overtone of a closed organ pipe and the first overtone of an open organ pipe of

same length is 150. what are fundamental frequencies of the closed

and open pipes?

The answer is 150 and 300 Hz.

a closed organ pipe and the first overtone of an open organ pipe of same length is 150. what are fundamental frequencies of the closed and open pipes?

two bodies of masses 100 kg and 1000kg are at a distance 1m

apart Calculate the gravitational field intensity at the

middle point of line joining them. G= 6.67 × 10^-7 Nkg^-1.

How can I find the mass acting at the mid point of the line

joining two bodies of masses 100 and 1000kg. Please show the

procedure. Thanks in advance!!

40m high building projects a stone vertically upwards with an initial

velocity of 10m/s. The stone eventually falls to the ground.

1. After how long will the stone strike the ground.

2. After how long will the stone pass through the point from where it

was projected.

Show the procedure.

Thanks in advance!

40m high building projects a stone vertically upwards with an initial velocity of 10m/s. The stone eventually falls to the ground.

1. After how long will the stone strike the ground.

2. After how long will the stone pass through the point from where it was projected.

Show the procedure.

Thanks in advance!

A block of mass 2 kg is dropped from height of 40 cm on a spring whose force constant is 1960 N/m. What will be the max distance of compression of spring. take g=9.8

strikes an ideal weightless spring and produces a compression of 25 cm in it. Calculate the force-constant of the spring.

A 0.2 kg ball is suspended by a thread of length 1m. it is pulled aside until the thread makes an angle of 30 degree with the vertical. How much work is done against the gravity ? g=10

what is the height and hypotenuse of an inclined plane acc to this line

1.00 g of oxygen combine with 0.126 g of hydrogen to form H2O. 1.00 g of nitrogen combine with 0.216 g of hydrogen to form NH3. Predict the weight of oxygen required to combine with 1.00 g of nitrogen to form an oxide.

Please show the working.

Thanks in advance!

A uniform shell explodes into three equal parts. Two of them

fly off perpendicular to each other with velocities 9 m/s and

12 m/s. Find the velocity of third part.

Please show the procedure.

A uniform shell explodes into three equal parts. Two of them fly off perpendicular to each other with velocities 9 m/s and 12 m/s. Find the velocity of third part.

Please show the procedure.

A proton (mass 1.67 × 10^-27 kg) on striking neutron ( mass nearly

equal to proton) forms a deutron. What would be the velocity of the

deutron if it is formed by a proton moving left with a velocity of 7 ×

10^6 m/s and a neutron moving right with a velocity of 4 × 10^6 m/s ?

Please show the procedure.

A proton (mass 1.67 × 10^-27 kg) on striking neutron ( mass nearly equal to proton) forms a deutron. What would be the velocity of the deutron if it is formed by a proton moving left with a velocity of 7 × 10^6 m/s and a neutron moving right with a velocity of 4 × 10^6 m/s ?

Please show the procedure.

Thanks in advance!

A stone is thrown from the top of a tower at an angle of 30 degree

up with the horizontal with a velocity of 16m/s. After 4 sec of flight

it strikes the ground. Calculate the height of the tower from the

ground and the horizontal range of stone. (g=9.8)

I've passed my 10th icse with 92.6%. I just wanted to know if the best five policy includes English marks or not. I just read an article http://www.minglebox.com/article/icse/no-best-5-po... which says that passing in English exam is compulsory (I got 88) but it's not necessary to include marks in best five. is it true? I'm confused because some of my friends are saying that it's compulsory?

thanks for the help.

best five policy of boards I've no idea what subjects are to be included in icse boards percentage. So, can anyone please take out the percentage for me in following marks:

Eng : 86

Hin: 92

HCG: 92

Mat: 92

Sci: 88

Cta: 94

(all marks are out of hundred) thanks in advance! :)

Are there any rules required to fill the blanks with appropriate tenses?

for example, By the time we ________ the party ____________ (arrive,

finish)

the first blank will be, arrived but I'm not sure about the other one.

Will the second blank be "finished" or "has finished"?

I don't know when to use a verb or a verb with tenses.

So, please can anyone tell me certain rules which are applied during

filling of the blanks and when to use has/ has been/had/had been

with verbs?

And please mention the rules.

Thanks for the help!