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2 years ago

Information gets from sensory memory to short-term memory through the process of _________.

1 answer:

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What is referred to the description above is the term SELECTIVE ATTENTION. When there is selective attention, there are certain memories that are only selected and these are processed to become part of the short-term memory. Not everything that is being sensed is remembered.

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What is the distance rn between the point of application of n⃗ and the axis of rotation? what is the distance rw between the poi

Mandarinka [93]

Complete Question.

A. Suppose that you are holding a pencil balanced on its point. If you release the pencil and it begins to fall, what will be the angular acceleration when it has an angle of 10.0 degrees from the vertical?

B. What is the distance rn between the point of application of n⃗ and the axis of rotation?

C. What is the distance rw between the point of application of w⃗ and the axis? enter your answers in meters separated by a comma?

Answer:

A. â = - 17rad/s²

B. rn = 0, meters

C. rw = 0.074, meters

Explanation:

Where;

l = length of the pencil

θ = angle between the vertical line and the pencil

â = angular acceleration.

The torque due to weight about the pivotal point is negative since it's clockwise;

t = - mg(l/2)sinØ ..... equation 1

torque with respect to angular acceleration;

t = Iâ ..... equation 2

The moment of Inertia of the pencil about one end;

I = (ml²)/3

Substituting I into equation 2;

t = [(ml²)/3]×â

Equating the equation, we have;

[(ml²)/3]×â = - mg(l/2)sinØ

â = (-3gsinØ)/2l

â = (-3*9.8*sin10°)/(2*0.15)

Angular acceleration, â = -17rad/s²

B. The normal force is acting at the normal force only, so the distance r n between the point of application of n ⃗ and the axis of rotation is zero because the axis of pencil is passing the same point of application w.

C. rn = (lcosØ)/2

rn = (0.15 * cos10°)/2

rn = (0.15 * 0.9848)/2

rn = (0.1477)/2

rn = 0.074m.

Since the gravity acts at exactly half of the length of pencil, distance r w between the point of application of w⃗ and the axis equals 0.074m.

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2 years ago

On the planet Sigma, robots excavate chunks of a very precious cristaline. These chunks can be divided into smaller part only on

Rainbow [258]

Answer:

Start the algorithm and check the weight of the ship. Load the crystalline to the ship. Check to see if the ship weighs ship weight + k pound crystalline, if less, add more crystalline. If excess, remove the excess crystalline, but if the weight meets the condition, then take off with the loaded ship to planet sigma.

Explanation:

The algorithm continuously checks the weight of the ship on loading with the calculated sum of the ship and k pound crystalline weight. The ship is able to load the correct maximum amount of crystalline to the planet sigma.

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2 years ago

RADIAC instruments that operate on the ionization principle are broken down into three main categories based on what?

mash [69]

Answer:

Electrical potential.

Explanation:

RADIAC Meter or instruments ( also known as radiation monitoring instruments) are measuring instruments that uses the principles of gaseous ionisation to conduct electricity flow internally to deflect the pointer for its Meter readings. These instruments can be analogue or digital.

They are used in industries to monitor the operation of certain equipments and processes. The level of electrical potential flow in the system determines the state or category of the instrument. Out of six, there are three main categories of electrical potential level.

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2 years ago

Show how to define a view tot_credits (year, num_credits), giving the total number of credits taken by students in each year

andreev551 [17]

Hi! I'm a Digital Marketer Intern at hotels.ng and I have a moderate knowledge on programming.

First, your question is not very explanatory. The term "view" is often used in back-end web development. A view is simply a Python function that takes a Web request and returns a Web response.

But I'm not sure this is what you want, so I'll just go ahead and write a python function involving class to return the total number of credits taken by a student.

I'll answer this question using Python.

class student(object):

credits = None

year = None

def num_credits(self):

#get credit value

self.credits = input("Enter the total number of credits: " )

pass

def getYear(self):

self.year = input("Enter current year: ")

pass

def tot_credits(self):

TotalCredits = tempTotalCredits + self.num_credits

print "Your total credits are :"+" "+str(TotalCredits)

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2 years ago

a.Write a Python function sum_1k(M) that returns the sumí‘ í‘ = âˆ‘1í‘˜í‘˜í‘€í‘€í‘˜í‘˜=1b.Compute s for M = 3 by hand and write

stealth61 [152]

Answer:

def sum_1k(M):

s = 0

for k in range(1, M+1):

s = s + 1.0/k

return s

def test_sum_1k():

expected_value = 1.0+1.0/2+1.0/3

computed_value = sum_1k(3)

if expected_value == computed_value:

print("Test is successful")

else:

print("Test is NOT successful")

test_sum_1k()

Explanation:

It seems the hidden part is a summation (sigma) notation that goes from 1 to M with 1/k.

- Inside the sum_1k(M), iterate from 1 to M and calculate-return the sum of the expression.

- Inside the test_sum_1k(), calculate the expected_value, refers to the value that is calculated by hand and computed_value, refers to the value that is the result of the sum_1k(3). Then, compare the values and print the appropriate message

- Call the test_sum_1k() to see the result

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2 years ago