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Lunna [17]
2 years ago
9

Water flow enters a pipe at a velocity of 1m/s. The pipe inlet is 10cm. The pipe outlet is 6cm. 1. Determine the velocity of the

exiting stream
Engineering
1 answer:
devlian [24]2 years ago
5 0
他百五十幾個星期了吧在這些時候才是真正的問題 這種
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(a) Determine the dose (in mg/kg-day) for a bioaccumulative chemical with BCF = 103 that is found in water at a concentration of
solmaris [256]

Answer:

0.064 mg/kg/day

6.25% from water, 93.75% from fish

Explanation:

Density of water is 1 kg/L, so the concentration of the chemical in the water is 0.1 mg/kg.

The BCF = 10³, so the concentration of the chemical in the fish is:

10³ = x / (0.1 mg/kg)

x = 100 mg/kg

For 2 L of water and 30 g of fish:

2 kg × 0.1 mg/kg = 0.2 mg

0.030 kg × 100 mg/kg = 3 mg

The total daily intake is 3.2 mg.  Divided by the woman's mass of 50 kg, the dosage is:

(3.2 mg/day) / (50 kg) = 0.064 mg/kg/day

b) The percent from the water is:

0.2 mg / 3.2 mg = 6.25%

And the percent from the fish is:

3 mg / 3.2 mg = 93.75%

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3 years ago
The voltage across a device and the current through it are:
butalik [34]

Answer:

attached below

Explanation:

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2 years ago
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Admission to the Engineering course at Cambridge is highly competitive, both in terms of the numbers and quality of applicants. In considering applicants, Colleges look for evidence both of academic ability and of motivation towards Engineering. There are no absolute standards required of A Level achievement, but it should be noted that the average entrant to the Department has three A* grades. You need to get top marks in Maths and Physics.All Colleges strongly prefer applicants for Engineering to be taking a third subject that is relevant to Engineering.
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For some metal alloy, the following engineering stresses produce the corresponding engineering plastic strains prior to necking.
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203.0160

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Because you add then subtract then multiply buy 7 the subtract then divide then you add that to the other numbers you got than boom

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