Bernoulli's Definition and 322 Threads

hey can any1 help me with these 3 questions? 1. a piece of lead has a shape of a hockey puck with a diameter of 7.5cm and a height of 2.5cm. If the puck is placed in a mercury bath it floats. how deep below the surface of the mercury is the bottom of the lead puck? [2.1cm] (can anyone give...

not sure where to begin... The blood speed in a normal segment of a horizontal artery is 0.13 m/s. An abnormal segment of the artery is narrowed down by an arteriosclerotic plaque to one-fifth the normal cross-sectional area. What is the difference in blood pressures between the normal and...

I have two problems that I can not figure out. Thanks for your help. Problem #1: A horizontal pipe 10.0 cm in diameter has a smooth reduction to a pipe 5.00 cm in diameter. If the pressure of the water in the larger pipe is 8.00 x 10^4 Pa and the pressure in the smaller pipe is 6.00 x 10^4...

Hi, I need help with a project on Bernoulli's floating ball. I wanted to prove with the use of Bernoulli's equation that the the velocity or pressure in one side of the equation (the low pressure area) is lower in pressure or higher in velocity. This is what I have so far: Using: P1 +...

Hi, I'm doing a project - Bernoulli's floating ball and i am trying to explain it using bernoulli's equation: P1 + 1/2pv1^2 = P2 + 1/2pv2^2 Where P1 represents the High pressure areas surrounding the jet air and the ball (atmospheric pressure) of which I have managed to obtain its...

According to the popular interpretation of 'Bernoulli's Principle', moving air should always be associated with a lower static gas pressure than resting air, but clearly this can not be correct: If one considers a pipe with air resting in it, then the static pressure on the inside of the wall...

Can anyone help me with this sum 1^10 + 2^10 + 3^10 ... +998^10 + 999^10 + 1000^10 = ? I read that when Gauss was a kid at school he solved the simplier problem of summing all the numbers in his head between 1 and 100, before the teacher and all the other kids, by the observing the...

Ok this stuff is confusing. Can someone give me a dumbified overview of this? I don't get when/how to use the equation. There are so many different forms and variations of pressure, bernoulli's equations it gets really confusing. I don't know what to equate what to what... ugh i don't know how...

Hey, I have this experiment i have to do and i have to undnerstand Bernoulli's Principle and it is just not getting to me. I don't understand how the pressure will decrease as the speed increases, or how the pressure will increase if the speed decreases. Like in the textbook, it says...

Where is the mistake in these few simple steps ?! First, I guess that \lim_{n\rightarrow \infty}\frac{n}{6^n}=0 I'll show it using the definition \left|\frac{n}{6^n}\right|<\epsilon \Leftrightarrow \frac{n}{6^n}<\epsilon But, Bernoulli's inequality states that (1+x)^n \geq 1+xn \...

A pump and its horizontal intake pipe are located 12 m beneath the surface of a reservoir. The speed of te water in the intake pipe causes the pressure there to decrease, in accord with Bernoulli's principle. Assuming nonviscous flow, what is the maximum speed with which water can flow through...

I need some help with some review questions for the test. I am trying to check the answers I get with the ones the teacher provided, bit I'm getting stuck. Knowing which equations to use etc... would be really helpful. What is the maximum weight an aircraft with a wing area of x m^2 can...

A small circular hole 6.00 mm in diameter is cut in the side of a large water tank, 14.0 m below the water level in the tank. The top of the tank is open to the air. A) What is the speed of efflux? sqrt(2*g*h) = 16.6 m/s B) What is the volume discharged per unit time. This is...

I'm so confused here's the question... The wind blows with a speed of 30.0m/s over the roof of your house. A. Assuming the air inside the house is relatively stagnant, what is the pressure difference at the roof between the inside air and the outside air? B. What net force does this...

Hi! This is the first question on my homework, so it's suppost to be the easiest, but I'm not sure how to tackle it. It's a Bernoulli's principle problem. Here it is: A horizontal pipe 11.6 cm in diameter has a smooth reduction to a pipe 4.72 cm in diameter. If the pressure of the water...

Hello everyone, I am having some difficulty with the following problem about bernoullis principle: THe problem says that the level of liquid h = y_2 - y_1 drops at a rate \frac{dh}{dt} = -\sqrt\frac{2gh{A_1}^2}{{A_2}^2-{A_1}^2} where A_1 and A_2 are the areas of the opening (water...

Here's my problem:- A horizontal tube has a T-junction with a vertical tube coming downwards into a container of liquid, at height h below the T-junction. Air is forced into the horizontal tube which causes a pressure difference which sucks the liquid up the vertical tube. What is the...

Can someone explain this principle to me in as few words as possible (less than 500) whilst retaining quality?

Can anyone explain to me how Bernoulli's equation arises from conservation of energy?

Hi everyone….I have a new question. I am writing a lab write-up and I am kind of confused about a concept. In this lab I studied the even flow of water by analyzing the flow of water through a Bernoulli’s pipe. The pipe was set up in a way that it was vertical, open at the top (where a hose...

Who first derived Bernoulli's equation?

Please click here first for some illustrations (otherwise it might be difficult to get my point across). The aerodynamic lift on the wing of an airplane (airfoil) is generally explained by the argument that the faster speed of the air along the top of the wing leads to reduced air pressure...