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vfiekz [6]
3 years ago
10

TRUE/FALSE: In order to use an object in a program, its class must be defined.

Computers and Technology
1 answer:
FinnZ [79.3K]3 years ago
3 0
Yes that is correct. True
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Which of the following phrases describes top-down processing
soldier1979 [14.2K]

Answer:

B. The effect that our experiences and expectations have on perception

Explanation:

Top-down processing refers to how our brains make use of information that has already been brought into the brain by one or more of the sensory systems. Top-down processing is a cognitive process that initiates with our thoughts, which flow down to lower-level functions, such as the senses.

Top-down processing is when we form our perceptions starting with a larger object, concept, or idea before working our way toward more detailed information. In other words, top-down processing happens when we work from the general to the specific—the big picture to the tiny details.

5 0
3 years ago
Suppose the work required to stretch a spring from 1.1m beyond its natural length to a meters beyond its natural length is 5 J,
Nadya [2.5K]

Answer:

Explanation:

The formula for the work done on a spring is:

W = \frac{1}{2}kx^{2}

where k is the spring constant and x is the change in length of the string

For the first statement,

x = (a-1.1), W = 5

=> 5 = \frac{1}{2}k(a-1.1)^{2}

Now making k the subject of formula, we have:

k = \frac{10}{(a-1.1)^2}  ---------------- (A)

For the second statement,

x = (a-4.8), W = 9

=> 9 = \frac{1}{2}k(a-4.8)^{2}

Now making k the subject of formula, we have:

k = \frac{18}{(a-4.8)^{2} } ------------------------- (B)

Equating A and B since k is constant, we have:

\frac{10}{(a-1.1)^{2} } = \frac{18}{(a-4.8)^{2} }

solving for the value of a

8a^{2} +56.4a-208.62=0

solving for a, we get:

a = 2.6801 or -9.7301

but since length cannot be negative, a = 2.68m

substituting the value of a in equation B, we have:

k=\frac{18}{(2.68-4.8)^{2} }

k = 4.005

6 0
4 years ago
Which of the following is not a danger of blogging
Ainat [17]
D. staying connected with an old friend.

4 0
3 years ago
Read 2 more answers
What affect does the corona virus have the United States economy
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Answer:

It can disturb the worldwide stock of products, making it harder for U.S. firms to take care of requests. It can likewise waylay laborers in influenced regions, diminishing work supply toward one side and on the other moderate the interest for U.S. items and administrations. The monetary interruptions brought about by the infection and the expanded vulnerability are being reflected in lower valuations and expanded instability in the money related markets. While the specific impact of the coronavirus on the U.S. economy is obscure and mysterious, obviously it presents colossal dangers. Corona will most legitimately shape monetary misfortunes through inventory chains, request, and budgetary markets, influencing business speculation, family unit utilization, and global exchange. The infection won't just influence supply, yet a few parts of the U.S. economy may likewise encounter decreases sought after—and enormous decreases in income—in light of the general consequences for the economy. More households are in debt and are not able to purchase the things they would normally purchase without a fixed budget

-Hope this helps

6 0
3 years ago
Summary about Interface Design in system analysis
Anit [1.1K]

Answer:

Explanation:Systems Analysis

It is a process of collecting and interpreting facts, identifying the problems, and decomposition of a system into its components.

System analysis is conducted for the purpose of studying a system or its parts in order to identify its objectives. It is a problem solving technique that improves the system and ensures that all the components of the system work efficiently to accomplish their purpose.

Systems Design

It is a process of planning a new business system or replacing an existing system by defining its components or modules to satisfy the specific requirements. Before planning, you need to understand the old system thoroughly and determine how computers can best be used in order to operate efficiently.

System Design focuses on how to accomplish the objective of the system.

System Analysis and Design (SAD) mainly focuses on −

Systems

Processes

Technology

5 0
2 years ago
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