#317 Write a pseudocode for a subset of 'n' numbers

Write a pseudocode for a subset of 'n' numbers - Computer Science

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Write a pseudocode for a subset of 'n' numbers such that the running average computed by accepting the (n+1)th number, adding that to the previous set of numbers but eliminating the first, and recalculating the average. Example: For the numbers {2, 5, 3, 7, 2,5,3,7,1,8,4,9,2,5,3,9,6} having a set of 4 to be averaged, the running average is {0.5, 1.75, 2.5, 4.25, 4.25, 4.25, 4.25, 4.25, 4, 4.75, 5, 5.5, 5.75, 5, 4.75, 4.75, 5.75).

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#316 A brown male mouse is mated with

A brown male mouse is mated with - Biology

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A brown male mouse is mated with two female black mice. In several litters of young, the first female has had 48 black and the second female has had 14 black and 11 brown young. Can you deduce the pattern of inheritance of coat color and the genotypes of the parents?

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Step 1 of 2

Brown male mouse is mated with two female black mice. The first female has 48 black mice while the second female has 14 black and 11 brown young.

From the above result it can be deduced that: the gene for black coat is dominant (B) while the gene for brown coat is recessive (b).

In the first case, both the parents are homozygous.

Genotype of brown male is: b/b

Genotype of black female mouse is: B/B

The cross with first female:

b/b x B/B

F1 generation: B/b or all the young in the litter are black.
Step 2 of 2

In the second cross between brown male mouse (b/b) and second black female mouse (B/b) the female is heterozygous.

The cross with second female mice is:

b/b x B/b

So in F1 generation nearly half of the young are brown and the other half are black.

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#315 Hinshelwood and Green studied the

Hinshelwood and Green studied the - Chemistry

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Hinshelwood and Green studied the kinetics of reaction between NO and H_2. 2NO+2H_2 rightarrow N_2+2 H_2 O. They found that the rate of reaction was second order in NO and first order in H_2. The rate constant was measured at various temperatures, with the results given in the following table.

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A. Does the data follow the Arrhenius relationship?

B. Justify your answer If so, what is the activation energy of the reaction?

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#314 When the high temperature superconductor

When the high temperature superconductor - Civil Engineering

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The structure consists of a collar at B that is free to slide along a straight fixed bar AC. Mounted on the collar is a frictionless pulley, around which a cable supporting a 5 lb weight is wrapped. The collar is further supported by a bar BD.

(a) If a =0°, determine the force in bar BD needed to keep the system in equilibrium.

(b) Determine the value of a that will provide for the smallest force in bar BD, and determine the value of this force.

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#313 When the high temperature superconductor

When the high temperature superconductor - Chemistry

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When the high temperature superconductor yttrium barium copper oxide is heated under flowing H₂, the solid remaining at 1000°C is a mixture of Y₂O₃, BaO and Cu. The starting material has the formula YBa₂Cu₃0_7-x' in which the oxygen stoichiometry varies between 7 and 6.5 (x-0 to 0.5). Starting with 28.19 mg of YBa₂Cu₃0_7-x'25.85 mg of solid product remained at 1000°C. Find the value ofx.(10 marks) (MW of Y: 88.91, MW of Ba: 137.33, MW of Cu: 63.55, MW of O: 16.00)

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Mw of Y2O3 = 2(Y)+ 3(O) = 2(88.91)+3(16) = 225.82

MW of BaO = 1(Ba)+1(O) = 1(137.33)+1(16) = 153.33

MW of Cu = 63.55

Total Molecular weight of mixture = 225.82+153.33+63.55

= 442.70

25.85 mg of mixture produced from 28.19mg

442.70 mg of mixture produced from ________

(25.85/28.19) = (442.70/X)

X = (442.70×28.19)/25.85 = 482.7741mg

If we expressed weight of X in grams, weight = 482.7741grs

YBa2Cu3O(7-x) = 482.7741

1(Y)+2(Ba)+3(Cu)+(7-x)O = 482.7741

1(88.91)+2(137.33)+3(63.55)+(7-x)16 = 482.7741

88.91+274.66+190.65+(7-x)16 = 482.7741

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#312 Two golf balls are hit from the

Two golf balls are hit from the - Physics

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Two golf balls are hit from the same point on a flat field. Both are hit at an angle of 20° above the horizontal. Ball 2 has twice the initial speed of ball 1. If ball 1 lands a distance d1 from the initial point, at what distance d2 does ball 2 land from the initial point? (Neglect any effects due to air resistance.)

A) d $d_{2} = 2d_{_{1}}$

B) $d_{2} = 0.5d_{_{1}}$

C) $d_{2} = 8d_{_{1}}$

D) $d_{2} = d_{_{1}}$

E) $d_{2} = 4d_{_{1}}$

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d = (u² sin2theta) / g
therefore, d₂ = 4 d₁

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#311 A hydraulic jump occurs in a rectangular

A hydraulic jump occurs in a rectangular - Mechanical Engineering

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A hydraulic jump occurs in a rectangular channel. The flow rate is 50 m3/s and the depth before the jump is 2 m. Determine the depth after the jump and the head loss if the channel is 1 m wide.

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Step 1 of 3

Ratio of the down stream to the upstream depths,

Upstream Froude number,

Flow depth before the jump,

Flow discharge,

Velocity of the upstream flow,

Step 2 of 3

So, the upstream Froude number,

Since, the upstream Froude number flow is in supercritical region.

Depth of the flow after the jump,

Therefore, depth of the flow after the jump is

Step 3 of 3

Head loss of the flow,

Therefore, the head loss of the flow,

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#310 The hoist shown is used in a machine

The hoist shown is used in a machine - Mechanical Engineering

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#309 The dimension h is to be determined

The dimension h is to be determined - Mechanical Engineering

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The dimension h is to be determined so that a worker can comfortably slide boxes weighing up to 100 lb up and down a frictionless incline. If the worker can apply a 501b horizontal force to the box, what is the largest value h should have?

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1. 1. Step 1 of 4
    
    Given data:-
    
    Weight of the boxes,
    
    Horizontal force applied by the worker,
    
    Let, be the angle made by the inclined plane with the horizontal.
    
    The normal reaction by the inclined slope on the boxes acts normal to the inclined surface. The weight of the boxes acts vertically downwards.
  2. Step 2 of 4
    
    The Free Body Diagram of the boxes is
  3. Step 3 of 4
    
    From the diagram, it is clear that
    
    So,
    
    For the largest value of h, the forces on the boxes should just be in equilibrium.
    
    From the free body diagram, balancing the vertical forces, we get
    
    …… (1)
    
    Similarly, balancing the horizontal forces, we have
    
    …… (2)
  4. Step 4 of 4
    
    From equations (1) and (2), we can write
    
    Substituting in the values of the variables, we get
    
    Hence, the optimum value of the height is
    
    For any value more than 1.5 ft, the weight component of the boxes down the inclined plane will be higher than the force applied along the same direction. Hence, 1.5 ft is the maximum value that h can take.

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#308 As follower AB rolls along the surface

As follower AB rolls along the surface - Mechanical Engineering

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As follower AB rolls along the surface of member C, it exerts a constant force F perpendicular to the surface, (a) Replace F with an equivalent force-couple system at the point D obtained by drawing the perpendicular from the point of contact to the x axis, (b) For a= 1 m and b = 2 m, determine the value of x for which the moment of the equivalent force-couple system at D is maximum.

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1. Step 1 of 3
  
  a)
  
  Find the value of , slope of the tangent to the surface of member C.
  
  Assume be the equivalent force and be the equ0ivalent moment of the force couple system acting at the point D.
  
  Assume be the angle made by the force, F with the horizontal.
  
  Since the force is perpendicular to the surface,
  
  The equivalent force acting at point D is .
  
  Therefore, the equivalent force acting at point D is and it is acting at an angle
2. Step 2 of 3
  
  Find the equivalent moment acting at point D.
  
  Substitute for and for .
  
  Therefore, the equivalent moment acting at point D is
3. Step 3 of 3
  
  b)
  
  Write the expression for equivalent moment acting at point D,
  
  Substitute 1 m for a and 2 m for b.
  
  Find the value of x at which the maximum value of couple at point D. Under maximum condition the following condition should satisfy:
  
  Consider only the positive value and neglect the negative value.
  
  Therefore, the value of x is .