To drive defensively means taking proactive measures to avoid accident situations regardless of their potential causes.

An antonym for the word “help” which may be found in a dictionary is a. Assist c. Hold b. Abandon d. None of these

Luba_88 [7]

I would have to say the answer is abondon

5 0

3 years ago

Read 2 more answers

What are the nine tasks (steps) you should perform prior to upgrading a computer to windows 7?

BARSIC [14]

I think those 9 tasks would be :

1. learns windows powershell
2. Plow through licensing
3. focus on strategic improvements
4. Expand the deployment scope
5. Prepare for distributed security
6. Virtualize your destkop
7. Evaluate enterprise features
8. Build compatibility safety nets
9. Remove your users' local admin rights

4 0

4 years ago

If a star system 30 parsecs distant is found to be broadcasting intelligent radio signals, then their news is already approximat

IrinaK [193]

Answer:

97.85 years, approximately.

Explanation:

Light travels at a constant speed of 186,000 mi/seg or 300,000km/seg accross the Universe (in vacuum conditions). Radio waves are also part of the electromagnetic spectrum, and they also travel at the same speed as Light does.

A light-year is a measure of the distance that Light travels during a year, that is, 5.88 trillion miles. Light travels the same distance per year because its speed is constant, and this is an excellent property that scientists take advantage to measure distances.

A parsec is 3.26 light-years (19 trillion miles), and (a very important datum to solve this question) one light-year is 0.306601 parsec, that is, in a year Light travels 0.306601 parsec at a constant speed. The same would happen with intelligent radio signals broadcasted from a distant star system.

So, considering all these facts, it is a matter of proportions to solve this question (mostly because speed of Light is constant):

$\frac{1 year}{0.306601 parsec} = \frac{X years}{30 parsecs}$

$x =\frac{1 year * 30 parsec}{0.306601 parsec}$

$x = \frac{30}{0.306601} years$

x = 97.84704 years or,

x = 97.85 years, approximately.

In other words, Light spends 97.85 years (terrestials) to travel 30 parsecs.

Likewise, radio waves travel at the same speed, so they spend the same years (97.85 years) travelling across the Universe to be finally detected by a radiotelescope located, for instance, here, in our planet.

Finally, the star system broadcasted intelligent radio signal with 'news' that are already approximately 97.85 years old'.

6 0

3 years ago

Differentiate between computer organization and computer architecture with example

vazorg [7]

Computer architecture was essentially a contract with software stating unambiguously what the hardware does. The architecture was essentially a set of statements of the form "If you execute this instruction (or get an interrupt, etc.), then that is what happens." <More sophisticated readers: I get to the term "ISA" later.>
Computer organization, then, was a usually high-level description of the logic, memory, etc., used to implement that contract: These registers, those data paths, this connection to memory, etc.

Computer Architecture and Computer Organization Examples

Intel and AMD make X86 CPUs where X86 refers to the computer architecture used. X86 is an example on a CISC architecture (CISC stands for Complex Instruction Set Computer). CISC instructions are complex and may take multiple CPU cycles to execute. As you can see, one architecture (X86) but two different computer organizations (Intel and AMD flavors).

nVidia and Qualcomm on the other hand make GPUs (graphics processing unit as opposed to a CPU central processing unit). These GPUs are based on the ARM (Advanced RISC Machines) architecture. ARM is an example on a RISC architecture (RISC stands for Reduced Instruction Set Computer). Instructions in an ARM architecture are relatively simple and typically execute in one clock cycle. Similarly, ARM here is the computer architecture while both nVidia and Qualcomm develop their own flavor of computer organization (i.e architecture implementation)

8 0

4 years ago

Consider an ERD for a beauty salon in which there is a superclass entity EMPLOYEE with four subclasses:

julsineya [31]

Answer:

Partial and disjoint

Explanation:

Since there is overlapping in relationship of HAIR_STYLIST and MANAGER it can't be tree structure.

A MANAGER can or can't be HAIR_STYLIST. In order for the relationship to be multiple inhertiance am entity in sub-class has to be union of all subclasses

In single inheritance, a sub-class has to be a union of a single super class.

In partial and disjoint, some entity in super class may or may not be related to a sub-class.

5 0

3 years ago