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pshichka [43]
3 years ago
12

A market research survey has 15 questions and will be sent to 500 people. What is the total cost to conduct survey if it has a $

1,000 base fee plus $5 per question and $2 per person survey
Engineering
1 answer:
Dimas [21]3 years ago
8 0

Answer:

$39,500

Explanation:

In order to find the total cost, we proceed as follows:

1)

First, the base fee is:

b=\$1000

2)

Then we calculate the total number of questions: we have 15 questions per survey, and a total of 500 surveys (for 500 people), therefore the total number of questions is

Q=15\cdot 500 =7500

Since the cost is $5 per question, the total cost of the questions is

q=\$5\cdot 7500 =\$37,500

3)

Finally, we have 500 persons, and there is a cost of $2 per each person, so the cost due to this is

p=\$2\cdot 500 = \$1000

Therefore, the total cost is:

T=b+q+p=1000+37,500+1000=\$39,500

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Answer:

\frac{\delta p }{l} = 30.4 lb/ft^3

Explanation:

Given data:

flow rate = 10 gallon per  minute = 0.0223 ft^3/sec

diameter = 0.75 inch

we know discharge is given as

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V = \frac{0.223}{\frac{\pi}{4} \frac{0.75}{12}}

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we know that Reynold number

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Re = \frac{7.27 \times \frac{0.75}{12}}{1.21\times 10^{-5}}

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from moody diagram f value corresonding to Re and \frac{\epsilon }{D}is 0.037

for horizontal pipe

\delta p = \frac{f l \rho v^2}{2D}

\frac{\delta p }{l} = \frac{1 \times 0.037 \times 1.94 \times 7.27}{\frac{0.75}{12}}

where 1.94 slug/ft^3is density of  water

\frac{\delta p }{l} = 30.4 lb/ft^3

3 0
3 years ago
12.28 LAB: Output values in a list below a user defined amount - functions Write a program that first gets a list of integers fr
Anastaziya [24]

Answer:

def output_ints_less_than_or_equal_to_threshold(user_values, upper_threshold):

   for value in user_values:

       if value < upper_threshold:

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def get_user_values():

   n = int(input())

   lst = []

   for i in range(n):

       lst.append(int(input()))

   return lst  

if __name__ == '__main__':

   userValues = get_user_values()

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   output_ints_less_than_or_equal_to_threshold(userValues, upperThreshold)

8 0
3 years ago
How buy airpods in my phone​
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4 0
2 years ago
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A 200-mm-long strip of metal is stretched in two steps, first to 300 mm and then to 400 mm. Show that the total true strain is t
Neko [114]

Explanation:

For true Strain:

step 1:

E true = Ln(1 + 0.5 ) = 0.40

Step 2:

E true = Ln(1 + 0.33 ) = 0.29

By single step process:

E true = Ln(1 + 1 ) = 0.69

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4 0
3 years ago
A 1020 CD steel shaft is to transmit 15 kW while rotating at 1750 rpm. Determine the minimum diameter for the shaft to provide a
vladimir2022 [97]

Answer:

diameter is 14 mm

Explanation:

given data

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rotation N = 1750 rpm

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to find out

minimum diameter

solution

we will apply here power formula to find T that is

power = 2π×N×T / 60    .................1

put here value

15 ×10^{3} = 2π×1750×T / 60

so

T = 81.84 Nm

and

torsion = T / Z                        ..........2

here Z is section modulus i.e = πd³/ 16

so from equation 2

torsion = 81.84 / πd³/ 16

so torsion = 416.75 / / d³     .................3

so from shear stress theory

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so here σy = 530 for 1020 steel

so

torsion = σy / factor of safety

416.75 / d³ = 530 × 10^{6} / 3

so d = 0.0133 m

so diameter is 14 mm

3 0
3 years ago
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