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1. The milk silo has an internal diameter of 4.2 m and is pumped out at a constant flow rate of 29532 L h-1. How many minutes does it take to empty the silo? (Give answer to 1 DP). The pressure at the base of the tank (before pumping starts) is 19.6 psi(gauge). You will need the initial height of milk calculated from the previous question which is 13.245m
2. He milk is pumped (at a constant flow rate of 29532 L h-1) through a pipe that has an internal diameter of 65 mm. What is the milk velocity (m s-1)? (Give your answer to 2DP)
3. As the milk is pumped it must be heated from its storage temperature of 6°C to its sterilization temperature of 146°C. What is the rate of heating in kilowatts (kW)? (Round answer to 0 DP). The milk heat capacity is 3900 J kg-1K-1. The milk density is 1040 kg m-3. The milk flow rate is 29532 L h-1.
A diving board of length 3.00m is supported at a point 1m from the end, and a diver weighing 520 m stands at the free end . The diving board is of uniform cross section and weighs 270m.
falls to the safety net while the other speeds away, to reach another swing at the same height at that of the swing they left. Illustrate what should be the distance (in m) between the two swings?
A microscope has a 12.0 x eyepiece and a 59.0 objective lens 20.0 cm apart. Calculate (a) the total magnification, (b) the focal length of each lens, and (c) where the object must be for a normal relaxed eye to see it in focus?
The jumping squirrel. A squirrel wants to jump from a point A on a branch of a tree to a point B on another branch. The horizontal distance from A to B is x = 5 ft, and the vertical distance is y = 4 ft. If the squirrel jumps with an initial speed..
A coin is placed 8 cm in front of a concave morror. T he mirror produces a real imege that has the diameter 4 times larger than that of the coin. What is the image distance.
Explain how does a magnitude of the electrical force between a pair of charged particles change when they are brought to half their original distance of seperation?
Batteries are rated in terms of ampere-hours (A h). For example, a battery that can produce the current of 3.00 A for 5.00 h is rated at 15.00 A h. What is the total energy stored in an 8.0-V battery rated at 49.0 A h.
Assume that a binary star system consists of two stars of equal mass. They are observed to be separated by 310 million kilometres and take 4.0 Earth years to orbit about the point midway between them.
The temperature of the surface of a certain star is 7500K. Most hydrogen atoms at the surface of star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could e..
A 5.0 ? resistor is connected in series with another resistor and a 5.0 V battery. The current in the circuit is 0.70 A. Calculate the value of the unknown resistance
What is mass of the block of ice
The distance between deer B and C is 92 m. What is distance between deer A and C.
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