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2 years ago

Which of the following is true about modern hydraulic lifts?

Engineering

1 answer:

kaheart [24]2 years ago

6 0

The modern hydraulic lifts make use of biodegradable fluid to transmit hydraulic power

Question: The options are left out in the question. The details and facts about the modern hydraulic lift are presented here

Details about the modern hydraulic lifts include;

The development of the modern hydraulic occurred in the Industrial Revolution to perform task done previously by steam powered elevators

The power of the hydraulic lift come from the hydraulic cylinder known as the actuator, which in turn is powered by pressurized hydraulic fluid such as oil

The hydraulic fluid is pushed by a piston rod through which energy is capable of being transferred, such that the applied force is multiplied, to provide more power for lifting

Facts about the modern hydraulic lifts include;

The dry motor in the modern hydraulic lift is more efficient and consumes 20% less energy

It comprises of valves that are controlled electronically such that the response is much rapid and the energy consumption is reduced by a further 20%

The cars used in the modern lift are lighter, as well as the slings, which reduces the power usage by 20%

It makes use of chemicals which are environmentally friendly as hydraulic fluid

The flash point of the fluid used is higher, as well as it posses 50% lower compressibility as well elasticity

Learn more here:

brainly.com/question/16942803

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The substance called olivine may have any composition between Mg2SiO4 and Fe2SiO4, i.e. the Mg atoms can be replaced by Fe atoms

Ipatiy [6.2K]

Answer:

The answer is "0.147 nm and 99.63 mol %"

Explanation:

In point (a):

$\to nk1 = 062$

$\to \text{Bragg angle}$ $\theta =37.21^{\circ}$

$\to \text{diffraction angle}$ $2 \theta = 74.42^{\circ}$

$\to \lambda = 0.1790 nm$

find:

d(062)=?

formula:

$\to nx = 2d \sin \theta$

$\to d(062) = \frac{1 \times 0.1790^{\circ}}{2 \times \sin 37.21^{\circ}}\\$

$= \frac{0.1790^{\circ}}{2 \times 0.604738126}\\\\= \frac{0.29599589}{2}\\\\= 0.147 \\$

In point (b):

$\to Mg_2SiO_4\longleftrightarrow Fe_2SiO_4$

$d= 0.14774 \ \ \ \ \ olivine = 0.147 \ \ \ \ \ 0.15153$

formula:

$\to d=\frac{a}{\sqrt{n^2+k^2+i^2}}\\$

that's why the composition value equal to 99.63 %

3 0

3 years ago

(Architecture) Sarah is an environmental activist. She frequently conducts various programs and activities in her community to p

ddd [48]

The council from which Sarah can obtain her building certification is;

US Green Building Council

We are told that Sarah is an environmental activist because she conducts a lot of programs to advocate for clean and sustainable environment.

Now, there is a program called LEED which is an acronym for Leadership in

Energy and Environmental Design standards that is necessary for those

that want to measure the greenness of buildings.

This LEED program explained above is organized by an organization in

the United States of America (USA) known as US Green Building Council

(USGBC). This program is for everyone who wants to be a certified

environmental activist and thus i t is recommended that Sarah gets her

certification here.

Read more at; brainly.com/question/24611198

5 0

3 years ago

As a construction manager, Alex found a major issue with the client's design demands. He found out that the building design was

kipiarov [429]

Answer:

Which human resource skill helped Alex convince the client? its nagotiation

Explanation:

got it right on the test.

6 0

3 years ago

Consider a 1.80-m-tall man standing vertically in water and completely submerged in a pool. Determine the difference between the

defon

Answer:

17.658 kPa

Explanation:

The hydrostatic pressure of a fluid is the weight of a column of that fluid divided by the base of that column.

$P = \frac{weight}{base}$

Also, the weight of a column is its volume multiplied by it's density and the acceleration of gravity:

$weight = \delta * v * g$

Meanwhile, the volume of a column is the area of the base multiplied by the height:

$V = base * h$

Replacing:

$P = \frac{\delta * base * h * g}{base}$

The base cancels out, so:

$P = \delta * h * g$

The pressure depends only on the height of the fluid column, the density of the fluid and the gravity.

If you have two point at different heights (or depths in the case of objects submerged in water) each point will have its own column of fluid exerting pressure on it. Since the density of the fluid and the acceleration of gravity are the same for both points (in the case of hydrostatics density is about constant for all points, it is not the case in the atmosphere), we can write:

$\Delta P = \rho * g * (h1 - h2)$

We do not know at what depth the man of this problem is, but it doesn't matter, because we know the difference in height of the two points of interes (h1 - h2) = 1.8 m. So:

$\Delta P = 9.81 \frac{m}{s^{2} } * 1000 \frac{kg}{m^3} * 1.8 m = 17658 Pa = 17.658 kPa$

4 0

3 years ago

What is the most likely reason the rover won't travel in a straight line?

vovangra [49]

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Moving safely from rock to rock or location to location is a major challenge because of the communication time delay between Earth and Mars, which is about 20 minutes on average. Unlike a remote controlled car, the drivers of rovers on Mars cannot instantly see what is happening to a rover at any given moment and they cannot send quick commands to prevent the rover from running into a rock or falling off of a cliff.
During surface operations on Mars, each rover receives a new set of instructions at the beginning of each sol. Sent from the scientists and engineers on Earth, the command sequence tells the rover what targets to go to and what science experiments to perform on Mars. The rover is expected to move over a given distance, precisely position itself with respect to a target, and deploy its instruments to take close-up pictures and analyze the minerals or elements of rocks and soil.

6 0

3 years ago