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3 years ago

Which of the following helps to explain how hydraulic lifts work?

Physics

2 answers:

Gnesinka [82]3 years ago

8 0

Answer : C. Pascal's principle.

Explaination : Pascal's principle (well-known as Pascal's law) states that if a closed container contains a fluid at rest, then a small change in pressure at one side of the fluid is transmitted to each and every part of the fluid and also to the walls of the container without any loss. In a hydraulic lift, we need the same mechanism to work and so we take the help of Pascal's principle.

Hence, the correct option is C. Pascal's principle.

FromTheMoon [43]3 years ago

6 0

Answer:

Correct answer is C

Explanation:

Defination of Hydrollic lift:

A hydraulic lift is an example of multiplication of force by hydraulic press, A multiplication of force can be achieved by the application of fluid pressure according to Pascal's principle.

Pascal's principal:

According to Pascal's principle in a fluid inside a closed container, a pressure change in one part of fluid is transmitted without loss to every portion of the fluid and to the walls of the container.

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Ali mixes 20g of Sodium Chloride in 100g of water at 15 Degree °C. Calculate the mass of the solution

Lera25 [3.4K]

Answer:

The mass of the solution is 120 g.

Explanation:

The mass of the solution is given by:

$m_{sol} = m_{1} + m_{2}$

Where:

$m_{sol}$ : is the mass of the solution

$m_{1}$ : is the mass of the solvent

$m_{2}$ : is the mass of the solute

In the solution, the solvent is the majority compound (in mass) and the solute is the minority (in mass), so the solvent is the water and the solute is sodium chloride.

Hence, the mass of the solution is:

$m_{sol} = m_{1} + m_{2} = 100 g + 20 g = 120 g$

I hope it helps you!

7 0

2 years ago

When a wave enters a new medium from an angle, both the speed and the ________ change

slamgirl [31]

Answer:

B: Amplitude

Explanation:

When a wave travels from one medium to the other from an angle, the things that change are amplitude, wavelength, intensity and velocity.

The frequency doesn't change because the frequency depends upon the source of the wave and not the medium by which the wave is propagated.

8 0

2 years ago

Read 2 more answers

Would a pair of scissors with really long blades and a short handle be practical? Why or why not?

Lana71 [14]

Yes, for balance.hope this helped.

6 0

3 years ago

A student thinks that any real vibration must be damped. Is the student correct? If so, give convincing reasoning. If not, give

Stels [109]

Answer:

Yes the student is correct

Explanation:

The first law of thermodynamics states that energy can neither be created nor destroyed

The second law of thermodynamics states that the entropy (disorderliness) of an isolated system always increases

Therefore, whereby energy is not supplied to maintain the orderly oscillatory motion with constant amplitude, the amplitude of the system is bound to reduce with time that is the vibration of the system must be damped

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3 years ago

What force is needed to accelerate a 1,000-kilogram car from a stop to 5 m/s/s?

solong [7]

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3 0

2 years ago