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kondor19780726 [428]
3 years ago
14

Hashim, a 69-year-old, makes errors while performing tasks. He is unable to detect and correct the errors. He is also unable to

deal effectively with difficult or novel circumstances. Given this information, it can be said that:
Physics
1 answer:
zavuch27 [327]3 years ago
3 0

Question:

The options are;

A. Hashim's selective attention has increased.

B. Hashim's brain receives increased supplies of blood.

C. Hashim has deficiencies in executive attention.

D. Hashim has high blood pressure.

Answer:

The correct option is;

C. Hashim has deficiencies in executive attention.

Explanation:

Executive attention is the brain function that permits the setting of priorities of relevant observations from irrelevant observations, such that competing attention requiring observations can be resolved. The process of executive attention can be shown in mental exercises where the subject, based on his will, tries to redirect observed sensation, by making more important non-emotional features.

Executive attention enables the brain to focus and to isolate events thereby aiding in problem solving.

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Which graph showing constant acceleration correctly places the independent and dependent variables?
svp [43]
Do you have a picture
6 0
3 years ago
A. Telephone signals are often transmitted over long distances by microwaves. What is the frequency of microwave radiation with
zzz [600]

(a) 10 GHz is the frequency of microwave radiation.

(b) 0.167 ms is required by the microwave to travel between two mountains.

Answer:

Explanation:

(a). 1 MHz is the frequency of microwave radiation.

(b)  0.167 ms is required by the microwave to travel between two mountains.

Answer:

Explanation:

a. Frequency is the measure of number of times a same thing will be repeated in a given time interval for a given time. And wavelength is the measure of distance between two successive crests or troughs. So wavelength and frequency are inversely proportional to each other. And velocity of light is the proportionality constant.

So frequency of microwave radiation = Speed of light/Wavelength of radiation

Frequency = \frac{3*10^{8} }{3*10^{-2} }

Frequency = 10^{8+2} = 10^{10}=10 GHz

So 10 GHz is the frequency of microwave radiation.

b). As microwave is a part of light waves, so it will be experiencing the speed of light.

As the speed is 3*10^{8} m/s and the distance between the two mountains is given as 50 km, then time can be calculated as

Time = Distance/Velocity

Time = \frac{50*10^{3} m}{3*10^{8} }=16.67*10^{3-8}=16.67*10^{-5}

So time = 0.167 ms.

Thus, 0.167 ms is required by the microwave to travel between two mountains.

6 0
4 years ago
Two light waves, initially emitted in phase, will interfere constructively with maximum amplitude if the path-length difference
777dan777 [17]

Two light waves will interfere constructively if the path-length difference between them is a whole number.

<h3>SUPERPOSITION</h3>

The principle of superposition state that, when two or more waves meet at a point, the resultant displacement at that point is equal to the sum of the displacements of the individual waves at that point.

Interference of waves can either be constructive, or destructive.

The two light waves, initially emitted in phase, will interfere constructively with maximum amplitude if the path-length difference between them is a whole number of wavelenght 1λ, 2λ, 3λ, 4λ etc

The equivalent phase differences between the waves will be 2\pi or 360 degrees, 4\pi or 720 degrees, 6\pi 1080 degrees etc

Therefore, the two light waves, initially emitted in phase, will interfere constructively with maximum amplitude if the path-length difference between them is a whole number.

Learn more about Interference here: brainly.com/question/25310724

8 0
2 years ago
Q7. What caused the early materials to clump together?
tekilochka [14]

Answer:

C. pressure

because heat expands and so does explosions and gravity is just gravity.

4 0
3 years ago
What is the most interesting or surprising thing you learned about contact and non-contact forces?
beks73 [17]

Answer:

nothing interest, i just hate that part i love only the calculations

4 0
2 years ago
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