Home
Class 9
PHYSICS
Find the pressuer exerted on the skin of...

Find the pressuer exerted on the skin of a balloon with a force of 2.1 N usint (a) your finger of (b) a needle. Assume the area of your finger tip is `1.0xx10^-4m^2`, and the area of the needle tip is `2.5xx10^-7m^2`. (c ) Find the maximum force necessary to burst the balloon with the needle given that the balloon bursts with pressure of `3.0xx10^5(N)/(m^2)`. What insight you gain from the results obtained?

Promotional Banner

Similar Questions

Explore conceptually related problems

Find the pressure exerted at the tip of a drawing pin if it is pushed against a board with a force of 20N. Assume the area of the tip to be 0.1 mm^(2).

It is much easier to burst an inflated balloon with a needle than by a finger. Explain.

Find the pressure exerted at the tip of a board pin, of area 0.1 mm^(2) , if it is pressed against the board with a force 15 N.

Find the pressure exerted at the tip of a board pin, of area 0.1 mm^(2) , if it is pressed against the board with a force 15 N.

The breaking force of wire is 10^(4) N and radius is 1xx10^(-3) m. If the radius is 2xx10^(-3) m, then the breaking force will be

If the length of a needle floating on water is 2 cm then the additional force due to surface tension required to pull the needle out of water will be. S.T of water=7.0xx10^-2N//m)

Calculate the pressure when a force of 200 N acts on an area of (a) 10m^2 (b) 5m^2 .

Find the pressure at the tip of a drawing pin on area 0.2 mm square if it is pushed against a board with a force of 5 kg wt. (use g=10m//s^(2))

The length of a needle floating on water is 2.5 cm. Calculate the added force required to pull the needle out of water [T=7.2xx10^(-2)N//m]