How much energy did the heating element supply

Reference no: EM13235651

A particular vacuum flask has a mass of 1 kilogram and contains 1 liter of liquid water. A heating element within the flask vaporizes the water, which exits through a nozzle on the mouth of the flask. (Assume the cap/stopper on the flask is massless and can be ignored.) The vapor escapes with a spreed of 25 meters per second relative to the tank. If all the vapor exits instantaneously:

(a) what is the speed of the empty flask? Assume its initial velocity is zero.

(b) how much energy did the heating element supply? You can disregard the energy needed to warm and vaporize the water.

Reference no: EM13235651

Questions Cloud

Explain what would be the order of precipitation as a source : A solution is 0.1 mM in NaF, Na2CO3, and Na3PO4. What would be the order of precipitation as a source of Ca2+ is added gradually to the solution? The relevant Ksp values are Ksp [CaF2] = 4.0×10-11, Ksp[CaCO3] = 8.7×10-9, Ksp[Ca3(PO4)2] = 1.3×10-32..

How frequently should order for rivets placed and how much : A company uses rivets at a rate of 5,000 kg per year, rivets costing Rs.2 per kg. It costs Rs.20 to place an order and the carrying cost of inventory is 10 % per annum. How frequently should order for rivets be placed and how much?

Define the temperature obtained with the known boiling point : Use the appendices in your textbook to estimate the normal boiling point of water at 1 atm. Compare the temperature obtained with the known boiling point of water. Can you explain the discrepancy. At what temperature does water boil

Provide a blog-style account of a recent leadership : Provide a blog-style account of a recent leadership related story. Using an event that has occurred since June 1st 2014. Please select a current episode with global implications and analyse this story critically through the notions of map reading,..

How much energy did the heating element supply : A particular vacuum flask has a mass of 1 kilogram and contains 1 liter of liquid water, how much energy did the heating element supply, You can disregard the energy needed to warm and vaporize the water

Describe the four major issues surrounding the management : describe the four major issues surrounding the management of international projects.

Discuss type of market failure involved regulating cable : Explain whether the following government activities is motivated by a concern about equality or a concern about efficiency. In the case of efficiency, discuss the type of market failure involved- regulating cable TV prices.

What is networking : What is networking? How might a real eastate salesperson use networking to identify prospects?

What does the term qualifying mean : What does the term qualifying mean? What are the four basic questions that should be answered during the qualifying process?

User Account

All Pages