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Elden [556K]
3 years ago
5

Identify the correct statements about Lesch-Nyhan syndrome. There is more than one correct statement.

Engineering
1 answer:
Stels [109]3 years ago
3 0

Answer:

<h3>a) Some symptoms of Lesch-Nyhan syndrome include involuntary movements and self-mutilation. </h3><h3>e) This syndrome is caused by a deficiency in hypoxanthine-guaninephosphoribosyltransferase (HGPRT). </h3><h3 />

Explanation:

  • Lesch-Nyhan syndrome is a genetically transferred disorder caused by lack of hypoxanthine-guaninephosphoribosyltransferase (HGPRT). The lack of HGHPRT is caused when mutation happens in the HPRT1 gene in the X chromosome.
  • It is a very rare disorder usually inherited from the parents or the family tree . A person suffering from Lesch-Nyhan syndrome is commonly characterized by the overproduction of uric acid in their bodies.
  • Due to overproduction of uric acid, symptoms of Lesch-Nyhan syndrome include involuntary movements and self-mutilation.  These abnormal movements include muscle movements such dystonia chorea, and ballismus.
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A fiberglass composite is composed of a matrix of vinyl ester and reinforcing fibers of E-glass. The volume fraction of E-glass
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Full Question

Calculate the modulus of elasticity of the composite

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2. In the perpendicular direction of glass fibre

Answer:

1. 27.5876 GPa

2. 5.725 GPa

Explanation:

Given

Dimensions of the fibreglass is given by: 1.00 cm x 25.00 cm x 200.00 cm

Volume = 1 * 25 * 200 = 5000cm³

P1 = The volume fraction of the E-glass is 31%

P2 = The remainder 69% is Vinyl Ester

Volume of Vinyl Ester= 69% * 5000cm³ = 3450cm³

I. In the longitudinal direction of the glass fibre

Where

Modulus of elasticity of glass, E1 = 80 Gpa

Modulus of elasticity of vinyl ester, E2 = 4.04 Gpa

Modulus of elasticity = E1P1 + E2P2

Modulus of elasticity of vinyl esters = 31% * 80 + 69% * 4.04

Modulus = 24.8 + 2.7876

Modulus = 27.5876 GPa

ii. In the perpendicular direction of glass fibre

This is solved by

E1.E2/(P1.E2 + P2.E1)

= (80 * 4.04)/(31% * 4.04 + 69% * 80)

= 323.2/(1.2524 + 55.2)

= 5.725177317527687

= 5.725 GPa

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Answer:

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4 years ago
Heat is transferred at a rate of 2 kW from a hot reservoir at 875 K to a cold reservoir at 300 K. Calculate the rate at which th
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Answer:

The correct answer is 0.004382 kW/K, the second law is a=satisfied and established because it is a positive value.

Explanation:

Solution

From the question given we recall that,

The transferred heat rate is = 2kW

A reservoir cold at = 300K

The next step is to find the rate  at which the entropy of the two reservoirs changes is kW/K

Given that:

Δs =  Q/T This is the entropy formula,

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4 years ago
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