How much water was produced for the city of Dubai each day in 2009 using the desalination process?

Electric power is less expensive at night because:

Lorico [155]

Answer:

x) there is less demand at night

Explanation:

Electric power and it's the price is dependant on the level of demand it has, there are peak and off-peak times during the day, generally speaking during the night (between 10 pm and 7 am) electricity has lower demand.

The existence of peak times at a day is the reason why hydroelectric generation is lower at night, normally in peak off times the hydroelectric generator stores water for when the demand increases, same happens with powerplants at night not being as efficient as they are during the day when the energy is more needed. Finally, pollution control is stringent at all times of the day, its not related to the demand.

I hope you find this information useful! good luck!

4 0

3 years ago

. If the fastest passenger aircraft can fly 0.45 km/s (1000 mph), how long would it take to reach the sun? The galactic center?

nadezda [96]

Answer:

The passenger aircraft would take 10.542 years to reach the Sun from the Earth.

The passenger aircraft would take $1.733\times 10^{10}$ years to reach the gallactic center.

Explanation:

The distance to the sun from the Earth is approximately equal to $1.496\times 10^{8}\,km$ , if the passenger travels at constant speed, then the time needed to reach the sun is calculated by the following kinematic formula:

$\Delta t = \frac{s}{v}$ (1)

Where:

$s$ - Travelled distance, measured in kilometers.

$v$ - Speed of the passenger aircraft, measured in kilometers per second.

$\Delta t$ - Travelling time, measured in seconds.

If we know that $s = 1.496\times 10^{8}\,km$ and $v = 0.45\,\frac{km}{s}$ , then the travelling time is:

$\Delta t = \frac{1.496\times 10^{8}\,km}{0.45\,\frac{km}{h} }$

$\Delta t = 3.324\times 10^{8}\,s$

$\Delta t = 3847.736\,days$

$\Delta t = 10.542\,years$

The passenger aircraft would take 10.542 years to reach the Sun from the Earth.

The distance between the Earth and the galactic center is approximately equal to $2.460\times 10^{17}\,km$ . If the passenger travels at constant speed and if we know that $s = 2.460\times 10^{17}\,km$ and $v = 0.45\,\frac{km}{s}$ , then the travelling time is:

$\Delta t = \frac{2.460\times 10^{17}\,km}{0.45\,\frac{km}{s} }$

$\Delta t = 5.467\times 10^{17}\,s$

$\Delta t = 6.327\times 10^{12}\,days$

$\Delta t = 1.733\times 10^{10}\,years$

The passenger aircraft would take $1.733\times 10^{10}$ years to reach the gallactic center.

3 0

3 years ago

Why is it that the average pay is higher in some parts of the UK than other?

Snowcat [4.5K]

Answer:

Bigger cities have more opportunities, have a more developed public sector that pays more and have more frequent economic activity.

Explanation:

Difference between public and private sectors – some regions have a stronger public sector and a bigger need for it, and the wages in the private sector are generally lower. The recession affected the private sector very much in 2008, and also the skills and occupations needed are not the same. The cities and towns which have more need for public sector employees tend to generally have higher average pay.
Economic activity – the large cities, like London, have higher economic activity and processes. The network that a person in the city creates is wider than people in rural areas, which means the individual spends more and earns more to cover the expenses.
Companies and investors are more attracted to bigger cities – the investors are likely to place money and start the business in London than smaller towns, and therefore will create more job opportunities and economic processes. High-paying companies will first look into the prospects of starting a company in an area that is populated and has more economic activity.

7 0

2 years ago

In which country has the political assassination of political candidates, such as Benazir Bhutto, undermined democratic processe

andrew-mc [135]

Answer:

In PAKISTAN, the political assassination of political candidates, such as Benazir Bhutto, undermined democratic processes

6 0

3 years ago

Read 2 more answers

According to the map, which of the following statements is true? Russia remains heavily interdependent with nations of both Euro

irina [24]

Answer:

These statements are true.

Russia remains heavily interdependent with nations of both Europe and Asia.

The nations of Africa are heavily dependent upon one another for trade.

The nations of South America have a high level of interdependence.

6 0

3 years ago