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3 years ago

Explain how the pressure at the bottom of a container depends on the container shape and the fluid height

1 answer:

3 0

The pressure at the bottom of a column of fluid in a container
depends only on the depth of the fluid, not on the shape of the
container. The pressure is simply the result of the weight of the
fluid resting on the bottom.

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Many cultures around the world still use a simple weapon called a blowgun, a tube with a dart that fits tightly inside. A sharp

Yuki888 [10]

Answer:

F = 1.06N

Explanation:

In order to calculate the force that produces the given pressure you take into account the following formula:

$P=\frac{F}{A}$ (1)

P: pressure = 6.0kPa = 6.0*10³ Pa

F: force = ?

A: cross-sectional area of the tube = π r^2

r: radius of the tube = 1.5cm/2 = 0.75cm = 0.75*10^-2 m

You solve the equation (1) for F, and replace the values for the area A and the pressure P:

$F=PA=(6.0*10^{3}Pa)(\pi(0.75*10^{-2}m)^2)\\\\F=1.06N$

The force tha produces a pressure of 6.0kPa in a tube with a diameters of 1.5cm is 1.06N

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3 years ago

Jen is conducting an experiment involving a device known as a pith-ball electroscope, shown below.

andreev551 [17]

Answer:

bring each tube close to the plastic ball and note any movement of the ball

Explanation:

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just took the test!!!!!

6 0

2 years ago

Read 2 more answers

Animals often use more than one type of clue to help them to navigate. These clues include a sense of smell ('olfaction'') and r

Elina [12.6K]

An animal might use more than one type of clue to find its way due to change in the way one mechanism used to work.

Different animals have different senses heightened, that lets them use different mechanisms to navigate. Some of the mechanism include remembering landmarks, solar navigation, star navigation, magnetoreception, olfaction, gravity receptors etc.

For example, a bird using landmark to navigate will find it hard to navigate in the same way again if the landmark has been changed. So it has to depend on other senses such as olfaction or magnetoreception to navigate.

Therefore, an animal might use more than one type of clue to find its way due to change in the way one mechanism used to work.

To know more about Animal navigation

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7 0

1 year ago

When a car drives over a speed bump and oscillates up and down in simple harmonic motion, at which position during the motion is

Oksana_A [137]

Using the second Law of Newton, F = m * a, you know that acceleration is maximum when the force is maximum.

Using Hooke's Law, F = K Δx, you know that the force is maximum when the displacement from the equilibrium (Δx) is maximum.

So the answer is that the acceleration is maximum at the maximum amplitude x = a.

3 0

3 years ago

A stalled car is being pushed up a hill at constant velocity by three people. The net force on the car is Group of answer choice

vfiekz [6]

Answer:

Zero

Explanation:

Net force can be defined as the vector sum of all the forces acting on a body or an object i.e the sum of all forces acting simultaneously on a body or an object.

Mathematically, net force is given by the formula;

$Fnet = Fapp + Fg$

Where;

Fnet is the net force.

Fapp is the applied force.

Fg is the force due to gravitation.

In this scenario, a stalled car is being pushed up a hill at constant velocity by three people. Thus, the net force on the car is zero because all the forces acting on any physical object is equal to zero and represents a constant velocity; by balancing or cancelling each other out.

According to Sir Isaac Newton's First Law of Motion which is known as Law of Inertia, it states that an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.

7 0

3 years ago