A tank of water is emptied by the force of gravity
through a syphon. The difference in water levels between the two
tanks is 3 m and the highest point of the syphon is 2 m above the
top surface level and the length of the pipe from inlet to the
highest point is 2.5 m. The pipe is designed with a bore of 25 mm
and the length 6 m. The pipe frictional coefficient is 0.007 and
the inlet...
Elliot is thinking about buying a mixer for $12,000. It would
have a 5 year life with a salvage value of $2,000. It would
decrease operating costs by $1,000 each year of its economic life.
The straight-line depreciation method would be used for it with the
cost of capital being 6%.
1. What is the payback period? (use 2 decimal
places)
2. What is the annual rate of return? (use 2 decimal
places)
3. What is the internal rate of...
Question 5 a. Explain why liquids in a container have a
meniscus. Include a discussion of all relevant forces in your
answer and give examples of different forms of meniscus. [4 marks]
b. i. 50 cm3 of water flows through a pipe of radius 1 cm every
second. If the pressure gradient is maintained what diameter pipe
is required to double the flow rate? [1 mark] ii. What is the
average flow speed in each case in b(i) above? [2...
Imagine that you have a 6.00 L gas tank and a 2.50 L gas tank.
You need to fill one tank with oxygen and the other with acetylene
to use in conjunction with your welding torch. If you fill the
larger tank with oxygen to a pressure of 105 atm , to what pressure
should you fill the acetylene tank to ensure that you run out of
each gas at the same time? Assume ideal behavior for all gases.
Express...
Imagine that you have a 7.00 L gas tank and a 3.00 L gas tank.
You need to fill one tank with oxygen and the other with acetylene
to use in conjunction with your welding torch. If you fill the
larger tank with oxygen to a pressure of 155 atm , to what pressure
should you fill the acetylene tank to ensure that you run out of
each gas at the same time? Assume ideal behavior for all gases.
What is the difference between a one-photon and multiphoton
process? Why does the use of lasers make it favorable to observe,
say, a two-photon process?