Recent content by Ishraq Begum

Okay. How do I proceed after that?

The length equation, I'm not sure if its correct. I was taught that when surface tension acts on a object, it acts on both the sides of an object. Therefore I multiplied 2 with the length of the cut. Oh, I'm so sorry. I forgot to mention the length of the cut. Here's the complete question...

or P1 + ρgh1 + 1/2 ρv12 = P2 + ρgh2 + 1/2 ρv22 Here, P1 = 3 x 105 ρgh1 = 9.8 x 103 x h 1/2 ρv12 = 1/2 x 13 x 1 = 500 P2 = ? (to be found) ρgh2 = 9.8 x 103 x (h - 20) 1/2 ρv22 = 2 x 102 ⇒ (3x105) + 9.8 x 103 (h - h +20) + (500 - 2 x 103) = P2 ⇒ (3 x 105) + (1.96 x 105) + (-1500) = P2...

It states that total energy per unit volume remains constant throughout the flow. Mathematically, P + ρgh + 1/2 ρv2 = constant P = pressure, ρ = density of fluid, h = height of fluid, v = velocity with fluid is flowing

The velocity of the water at the second point will be double of that at the first point, i.e., 2 m/s How do you find the gauge pressure??

Homework Statement At a certain point in a pipeline, the velocity is 1 m/s and the gauge pressure is 3 x 105 N/m2. Find the gauge pressure at a second point in the line 20 m lower than the first if the cross-section at the second point is one half that at the first. The liquid in the pipe is...

I'm pretty sure the question is correct.

I don't really know, I'm confused. I thought when force due to surface tension acts on an object, it acts on both the sides of it.

Both (d) and (e) are correct. You can have more than one correct statements.

Homework Statement The tension in the skin of the left ventricle of heart is 4.90 N/m. A cut is made on the left ventricle during surgery. How many stitches must be used to repair the cut? Each stitch will safely support a tension of 0.4 N. Homework Equations Surface tension = force/length...

https://ibb.co/iVWqXR It is something like this.

Homework Statement What will be the length of mercury column in a barometer tube, when the atmospheric pressure is 75 cm of mercury and the tube is inclined at an angle of 60° with the horizontal direction? Homework Equations Pascal's Law The Attempt at a Solution l ⋅ sinϑ = h l = h / sinϑ l...

Homework Statement A glass tube is bent into a U shape. Water is poured into the tube until it sands 12 cm high on each side. Kerosene (density = 870 kg/m3) is added slowly to one side until water on the other side raises 5 cm. What is the length of kerosene column? Homework Equations (ρhg)1 =...

Hey, I'm Ishraq. I am 15 years old. I'm doing my high school education in Dubai. I'm a hardcore science enthusiast.