What happens when there is a change in pressure at any point in a fluid

Answers

Answer 1

Answer: A change in pressure applied to an enclosed fluid is transmitted undiminished to every point of the fluid and to the walls of the container. This is a statement of Pascal's Principle, which is the basis of the hydraulic jack you see lift cars at the garage.

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Air pressure in a tire is maintained because the air molecules areA. very large.
B. constantly changing shape.
C. constantly changing temperature.
D. constantly running into each other.

Answers

D. constantly running into each other.

There are five layers of the atmosphere and these are; troposphere, stratosphere, mesosphere, thermosphere and exosphere. The first layer, troposphere, is where we are able to do most of our activities. This is where we can see the formation of clouds, the production of rain, hail, snow and other weather phenomenon. Also, among the atmospheric layers, this layer is where the greatest amount of air pressure because most of the molecules of air are in this area. Like us, air has also mass and the pressure is brought down by the earth’s gravity causing an increase in weight exerted on you as you descend lower into the atmosphere. So, as you enter into the other layers of atmosphere above the troposphere, the air pressure starts to decrease. Below the atmosphere is the hydrosphere. This is where all liquid forms are located. And since the seawater has a greater mass than air, it has the greatest pressure. The answer is b.

Tobacco use can negatively impact a person's health, family, and finances. True or false

Answers

The answer is totally true

yes that is very true

two different types of rope with different properties are fused together to make one long rope. when a wave transfers from the first type of rope to the second type of rope, the wavelength becomes one-fourth of what it was before the transfer. what is true about the speed of the wave?(1 point) responses the speed of the wave becomes double its original speed after the transfer.

Answers

When a wave transfers from one medium to another with different properties, the speed of the wave can change. In this case, we know that the wavelength changes when the wave transfers from the first type of rope to the second type of rope. If the wavelength becomes one-fourth of what it was before the transfer, this means that the second type of rope has a higher wave speed than the first type of rope.

The wave speed is defined as the product of the wavelength and the frequency of the wave. Since the frequency of the wave remains constant as it transfers from one medium to another, a decrease in wavelength means an increase in wave speed. This can be seen from the wave equation, c = λf, where c is the wave speed, λ is the wavelength, and f is the frequency.

Therefore, if the wavelength becomes one-fourth of what it was before the transfer, this means that the wave speed in the second type of rope is four times the wave speed in the first type of rope. In other words, the speed of the wave becomes quadruple its original speed after the transfer.

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Elaborate on the reason(s) that matter is said to move even as in a solid state.A) The particles are bound through intermolecular forces but are able to move past each other with relative freedom.
B) The particles have sufficient energy to become an ionized gas and are in the most common state of matter in the universe.
C) The particles are not able to move out of their positions relative to one another, but do have small vibrational movements.
D) The particles are not bound to one another, move quickly, have a low density, and are able to spread apart from one another if unconstrained.

Brad and Matt are working in the lab. They noticed that when they mixed two dilute solutions together, the reaction between them happened very slowly. Which of Matt's suggestions would BEST help to increase the rate of this reaction?

A) increase the concentration of both solutions
B) decrease the concentration of both solutions
C) increase the concentration of one of the solutions
D) decrease the concentration of one of the solutions

Identify the correct order of increasing intermolecular force of attraction for the three most common states of matter.
A) liquid → solid → gas
B) solid → liquid → gas
C) gas → liquid → solid
D) gas → solid → liquid

Answers

1) The correct answer is
C) The particles are not able to move out of their positions relative to one another, but do have small vibrational movements.
In solids, in fact, particles are bound together so they cannot move freely. However, they can move around their fixed position with small vibrational movements, whose intensity depends on the temperature of the substance (the higher the temperature, the more intense the vibrations). For this reason, we say that matter moves also in solid state.

2) The correct answer is
A) increase the concentration of both solutions
In fact, when we increase the concentration of both solutions, we increase the number of particles that react in both solutions; as a result, the speed of the reaction will increase.

3) The correct answer is
C) gas → liquid → solid
In gases, in fact, particles are basically free to move, so the intermolecular forces of attraction are almost negligible. In liquids, particles are still able to move, however the intermolecular forces of attraction are stronger than in gases. Finally, in solids, particles are bound together, so they are not free to move and the intermolecular forces of attraction are very strong.

A ball of a mass 0.3 kg is released from rest at a height of 8 m. How fast is it going when it hits the ground? Acceleration due to gravity is g=9.8 m/s^2

Answers

In order to solve this problem, there are two equations that you need to know to solve this problem and pretty much all of kinematics. The first is that d=0.5at^2 (d=vertical distance, a=acceleration due to gravity and t=time). The second is vf-vi=at (vf=final velocity, vi=initial velocity, a=acceleration due to gravity, t=time). So to find the time that the ball traveled, isolate the t-variable from the d=0.5at^2. Isolate the t and the equation now becomes $√((2d)/a)$ . Solving the equation where d=8 and a=9.8 makes the time $√((2*8)/9.8)$ =1.355 seconds. With the second equation, the vi=0 m/s, the vf is unknown, a=9.8 m/s^2 and t=1.355 sec. Substitute all these values into the equation vf-vi=at, this makes it vf-0=9.8(1.355). This means that the vf=13.28 m/s.

Answer:

The answer is 12.5 m/s

v=the square root of 2 x(gh)

or v = the square root of 2 x (9.8 x 8)

Explanation:

Which is NOT a characteristic of background radiation?A.) It is generally safe
B.) It includes cosmic rays
C.) It burns and causes lung cancer
D.) It occurs naturally in the environment

Answers

The one among the following choices that is not a characteristic of background radiation is that it burns and causes lung cancer. The correct option among all the options that are given in the question is the third option or option "C". The other options given in the question are all true in case of background radiation.

Answer:

C.) It burns and causes lung cancer

Explanation:

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Which Of The Following Statements Are True?A) The north pole of a bar magnet will attract the south pole of another bar magnet. B) Earth's geographic north pole is actually a magnetic south pole. C) Earth's geographic south pole is also a magnetic south pole. D) The north poles of two bar magnets will attract each other. Scientists have evidence that single isolated magnetic poles, called magnetic monopoles, exist. E) The south poles of two bar magnets will repel each other.