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Tanzania [10]
3 years ago
5

Python lists are commonly used to store data types. Lists are a collection of information typically called a container. Think of

a physical container that can hold all kinds of objects, not just one object of the same type. Python includes a built-in list type called a list. They can be managed by many built-in functions that help fill, iterate over, add to, and delete a list. Why is it useful to store information with different data types?
Engineering
1 answer:
PSYCHO15rus [73]3 years ago
3 0

Answer:

Explained

Explanation:

Data Type specifies the processor how much amount of memory to be reserved for  a variable.

For example :If a variable is declared as String or Integer this tells the processor  to stored this much of space for this variable to store the value.

List :

1.List is sort of an array used to store values of different data types

2.Lists are ordered .Element in the list are elements in a list are indexed according to a definite sequence and placed at a specific index.Lists can hold different data types.

Here is an example of List ,List = ['a', 1,'b',4,[a,b,c,1]

1. Dictionary is an dis ordered collection of data values, used to store data values .

2.Dictionary is for key,value maps , Keys of a Dictionary are (should be ) unique and of immutable data type such as Strings, Integers and tuples.

Dict = {1: 'Apple', 2: 'Boy', 3:'God',4:[1, 2, 3, 4]}

Each unique key holds a value.  So it depends on the requirement or scenarios where we have to chose between list or dictionary

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10. True or False? A disruptive technology<br> radically changes the way people live and<br> work.
Anettt [7]

Answer:

<u>True</u>

Explanation:

According to Investopedia.com, "Disruptive technology is an innovation that significantly alters the way that consumers, industries, or businesses operate".

So yes, a disruptive does radically change the way people live and work.

5 0
3 years ago
Read 2 more answers
An ideal gas turbine operates using air coming at 355C and 350 kPa at a flow rate of 2.0 kg/s. Find the rate work output
GuDViN [60]

Answer:

The rate of work output = -396.17 kJ/s

Explanation:

Here we have the given parameters

Initial temperature, T₁ = 355°C = 628.15 K

Initial pressure, P₁ = 350 kPa

h₁ = 763.088 kJ/kg

s₁ = 4.287 kJ/(kg·K)

Assuming an isentropic system, from tables, we look for the saturation temperature of saturated air at 4.287 kJ/(kg·K) which is approximately

h₂ = 79.572 kJ/kg

The saturation temperature at the given

T₂ = 79°C

The rate of work output \dot W = \dot m×c_p×(T₂ - T₁)

Where;

c_p = The specific heat of air at constant pressure = 0.7177 kJ/(kg·K)

\dot m =  The mass flow rate = 2.0 kg/s

Substituting the values, we have;

\dot W = 2.0 × 0.7177 × (79 - 355) = -396.17 kJ/s

\dot W = -396.17 kJ/s

7 0
4 years ago
How to pass sharp edged tools to another student in welding
lisov135 [29]

Answer: When walking with a sharp tool, the tool should be carried with the blade down and away from the body. When climbing with a sharp tool, tool belts, or buckets with hand lines should be used so workers can have both hands to grip the ladder.

Explanation:

3 0
3 years ago
A condenser accepts steam from the turbine in problem 2 at a pressure of 2.34 kPa. Saturated water at the same pressure leaves t
vaieri [72.5K]

Answer:

The answer is "83.98, 1889.195, and 1889.195"

Explanation:

Given value:

\bold{P_{4}=2.34 \ kPa}

In point a:

The value of h_{f4}=83.915 \ \ \frac{Kj}{kg}\\

V_4=0.001002 \ \  \frac{Kj}{kg}\\\\U_4= 83.98 \ \ \frac{Kj}{kg}\\\\

In point b:

calculating heat leaves formula= h_3-h_{f4}

                                                      = 1973.11-83.915\\\\= 1889.195 \ \ \frac{KJ}{kg}

In point c:

calculating Heat transfer rate formula=m(h_3-h_4)

                                                              = 1(1889.195)\\\\                                     = 1889.19 \ \ kw.

7 0
3 years ago
How much does it cost to repair a broken train? (Fill in the blanks)
Lana71 [14]
900,000 dollors muny
8 0
2 years ago
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