Find the reynolds number of the water flowing through tube
What is the Reynolds number of the water at 20c flowing at 0.25m/s through 5mm diameter tube? If the pipe now heated, at what mean the water temperature will the flow transition to turbulence? Assume the velocity of the flow remain constant.
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30 mg of calcium ( Ca2+ ) and 50 mg ofMagnesium ( Mg2+ ) are dissolved in 0.5 L of water.What is the total hardness of the solution expressed in mg/L asCaCO3?
The table below shows the typical mass of eight animals. Plot and label these values on a log scale.
A 270-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal.
The population of a colony of rabbits grows exponentially. The colony begins with 10 rabbits; five years later there are 340 rabbits. Give a formula for the population of the colony of rabbits as a function of the time.
What is the Reynolds number of the water at 20c flowing at 0.25m/s through 5mm diameter tube? If the pipe now heated, at what mean the water temperature will the flow transition to turbulence?
Is the reaction of magnesium metal and oxygen gas an oxidation-reduction reaction? If so, what is the change in oxidation number of each type of atom?
(A) What is the work done by the boy? (B) What is the work done by the frictional force? (C) What is the net work done on the box?
Suppose that x has a binomial distribution with n = 50 and p = .6, so that ? = np = 30 and ? = sqrt( np(1 - p) ) = 3.4641. Calculate the following probabilities using the normal approximation with the continuity correction. (Hint: 23 < x < 3
The probability of getting a ticket when you don't pay the parking meter is 0.3. What is the probability of getting at least one parking ticket in five occasions when you do not pay the parking meter?
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