The work done in blowing a soap bubble

Asked by admin @ 29/08/2021 in Physics viewed by 304 People

What is the work done in blowing a soap bubble of radius r and surface tension s?

Answered by admin @ 29/08/2021

We know that a bubble has two surfaces in contact with air, so the total surface area of the bubble will be
=2×(4πR2)=8πR2Now, work done=Surface tension × Increase in surface area=T×(8πR2−0)=8πR2T

Calculate the work done in blowing a soap bubble

Asked by admin @ 16/08/2021 in Physics viewed by 310 persons

Calculate the work done in blowing a soap bubble from a radius of 2 cm and 3cm. The surface tension of the soap solution is 30dynes cm-1

What are the conditions for work to be done

Asked by admin @ 20/08/2021 in Physics viewed by 316 persons

What are the condition for work to be done

If the work done by a body on application

Asked by admin @ 16/08/2021 in Math viewed by 366 persons

If the work done by a body on application of a constant force is directly proportional to the distance travelled by the body, express this in the form of an …

No work is done by gravity on a bowling ball

Asked by admin @ 03/12/2021 in Physics viewed by 345 persons

No work is done by gravity on a bowling ball that rolls along a bowling alley because

When do we say that work is done

Asked by admin @ 24/08/2021 in Science viewed by 308 persons

When do we say that work is done?

The work done in placing a charge of 8

Asked by admin @ 20/08/2021 in Physics viewed by 416 persons

The work done in placing a charge of 8 x 10-18 coulomb on a capacitor of capacity 100 microfarad is:(A) 16 x 10-32 joule (B) 3.1 x 10-26 joule …

If work done in moving a charge of 20mc

Asked by admin @ 20/08/2021 in Physics viewed by 295 persons

If work done in moving a charge of 20 mC from infinity to a point O in an electric field is 15 J then what is the electric potential at …

The rate at which work is done is called

Asked by admin @ 20/08/2021 in Science viewed by 369 persons

the rate at which work is done is called ______. The options are force, power, energy or none of these. Which of these is the correct option

If more air is pushed in a soap bubble

Asked by admin @ 20/08/2021 in Physics viewed by 285 persons

If more air is pushed in a soap bubble, the pressure in it (a) decreases (b) increases (c) remains same (d) becomes zero.

If the diameter of a soap bubble is 10mm

Asked by admin @ 17/08/2021 in Physics viewed by 299 persons

If the diameter of a soap bubble is 10 mm and its surface tension is 0.04 N m⁻¹, find the excess pressure inside the bubble.

Which part of the computer displays the work done

Asked by admin @ 16/08/2021 in Computer Science viewed by 299 persons

Which part of the computer displays the work done? (A) RAM (B) Printer (C) Monitor (D) ROM (E) None of these

Under what conditions work is said to be done

Asked by admin @ 13/08/2021 in Political Science viewed by 373 persons

State the conditions under which work is said to have been done.

Examples of zero work done

Asked by admin @ 10/08/2021 in Physics viewed by 359 persons

10 examples for zero work done

What is the work done on the box by the weight of the box?

Asked by maham237 @ 23/12/2020 in Physics viewed by 277 persons

A box of weight w=2.0N accelerates down a rough plane that is inclined at an angle ϕ=30∘ above the horizontal, as shown (Figure 6). The normal force acting on the …

What is the work ww done on the box by the weight of the box?

Asked by maham237 @ 02/12/2020 in Physics viewed by 339 persons

A box of weight w=2.0N accelerates down a rough plane that is inclined at an angle ?=30? above the horizontal, as shown (Figure 6) . The normal force acting on …