1 a Water is pumped from a depth of 10 m and delivered through a pipe of cross section 10 m². If it is needed to deliver a volume of 10-'m' per second the power required will be (1) 10 kW (2) 9.8 kW (3) 15 kW (4) 4.9 kW​

Answers 2

Answer:

Correct answer is 2) 9.8kW

Explanation:

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Answer:

The correct option is 2) 9.8 kW

Explanation:

Here we have been given that water is pumped from a depth of 10 m and is delivered through a pipe that has a cross-section of [tex]10m^{2}[/tex]

It is to deliver a volume of 10 m per second.

The power for the water pump is given by:

Power = mgh

where m is the mass of the water needed to be drawn above, g is the acceleration due to the gravity and h is the height to which the water has to be pumped up.

m = density (d) × volume (V)

d = 1000 kg/[tex]m^{3}[/tex]

V = [tex]10^{-1}[/tex] [tex]m^{3}[/tex]

m = 1000 kg/ [tex]m^{3}[/tex] × [tex]10^{-1}[/tex] [tex]m^{3}[/tex]

⇒ m = 100 kg

g = 9.8 m/[tex]s^{2}[/tex]

h = 10 m

Therefore, the power required for the pump is as below;

P = mgh

⇒ P = 100 kg × 9.8 m/[tex]s^{2}[/tex] × 10 m

⇒ P = 9.8 kW

Therefore the correct option is option 2) 9.8 kW

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Read the following extract from Weathering the Storm in Ersama and turn it into a drama script. Prashant, all of nineteen years, decided to step in as leader of his village, if no one else did. He organised a group of youths and elders to jointly pressurise the merchant once again to part with his rice. This time the delegation succeeded and returned triumphantly, wading through the receding waters with food for the entire shelter. No one cared that the rice was already rotting. Branches from fallen trees were gathered to light a reluctant and slow fire, on which to cook the rice. For the first time in four days, the survivors at the cyclone shelter were able to fill their bellies. His next task was to organise a team of youth volunteers to clean the shelter of filth, urine, vomit and floating carcasses, and to tend to the wounds and fractures of the many who had been injured.​

Answer:

Prashant, all of nineteen years, decided to step in as leader of his village, if no one else did. He organised a group of youths and elders to jointly pressurise the merchant once again to part with his rice. This time the delegation succeeded and returned triumphantly, wading through the receding waters with food for the entire shelter. No one cared that the rice was already rotting. Branches from fallen trees were gathered to light a reluctant and slow fire, on which to cook the rice. For the first time in four days, the survivors at the cyclone shelter were able to fill their bellies. His next task was to organise a team of youth volunteers to clean the shelter of filth, urine, vomit and floating carcasses, and to tend to the wounds and fractures of the many who had been injured.

Explanation:

wading through the receding waters with food for the entire shelter. No one cared that the rice was already rotting. Branches from fallen trees were gathered to light a reluctant and slow fire, on which to cook the rice. For the first time in four days, the survivors at the cyclone shelter were able to fill their bellies. His next task was to organise a team of youth volunteers to clean the shelter of filth, urine, vomit and floating carcasses, and to tend to the wounds and fractures of the many who had been injured.

true or false? water is an example of chemical​

Answer:

true it is not example of chemical

True

  • Water is a chemical molecule made up of two hydrogen and one oxygen atoms.
  • Water is the term used to describe the liquid state of a substance. The solid phase is represented by ice, whereas the gas phase is represented by steam.
  • Under some circumstances, water might become a supercritical fluid.
  • The IUPAC refers to it as "water." It's also referred to as oxidane.
  • Oxidane is only used in chemistry to identify mononuclear parent hydrides as water derivatives.
Hassan ships cars into Ghana, Nigeria, and Benin republic from Europe. The import duty costs are 10%, 25%, and 12% respectively for used cars from the three countries and 25%, 40% and 20% for new cars. Assuming VAT is the same in all three countries and Hassan plans to buy a new car lot worth $100,000 in three months for his business expansion. His current car lot capacity in each country is 50 cars, but he has a credit facility in Europe that allows him to ship as many cars as he wants. Hassan has the following options as a strategy to meet his planned target. A: Give discounts that guarantees the sale of at least 10 cars every week B: Ship 100 cars for the two months, lease space from his friends at a cost, and maintain the standard markup C: Import more luxury cars with a huge markup Which of the above options is best for Hassan? A B C D

Answer:A

Step-by-step explanation:

the fraction form of the decimal 1.7 is​

Answer:

Decimal = 1.7

Fraction :

17 / 10

Answer:

The fraction form of the decimal 1.7 is​ 17/10.

Step-by-step explanation:

Whenever there is one number after the decimal place, think of it as out of  

10.

Hence, 1.7= 1+0.7 = 1+ 7/10 = 17/10.

The fraction form of the decimal 1.7 is​ 17/10.

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