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What is physics

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The rainbow bird

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Manish trading co page no 6.52 questions 4

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What is book keeping

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Who was authors pen pal

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4+4

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(11110)2 DECIMAL

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Y-2,2x+1

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In the figure ahead, three blocks are connected by strings. Masses of blocks are, m, 3m, 5m respectively and they are pulled by a force F on a frictionless horizontal surface. The tension P in the first string is 16N. Calculate: (1) acceleration of blocks, (2) tension Q in the second string, (3) force F.

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The surface tension of water is 72dyne/cm find value in SI units

Posted by Himanshu Arora 6 years, 8 months ago

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Gaurav Seth 6 years, 8 months ago

In SI unit the surface tension of water is 0.072 N/m
.

Explanation:

Dyne and Newton, both are units of force. While Dyne is specified in C-G-S(Centimeter – Gram – Second) unit system, Newton is specified in modern SI unit system.

We know that 1 Newton = dyne.

Surface tension of water - 72 dyne/cm.

1 dyne/cm = 0.001 N/m

72 dyne/cm = 0.072 N/m

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Exercise 9.3 question 23to27

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