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kolezko [41]
3 years ago
5

Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional

questions.
Online Content: Site 1

According to research, which method of reinforcement is generally regarded as the most powerful? Why?
Physics
2 answers:
kenny6666 [7]3 years ago
7 0

Answer:

Positive reinforcement is considered the most powerful because people respond best to it. Positive reinforcement strengthens or increases a behavior due to the addition of a reward. Researchers believe this may be because it is easier to process the addition of a positive response or reward for a given behavior (positive reinforcement) than the removal of an unwanted response for the same behavior (negative reinforcement).  The gold star as a reward is much more effective than punishing a child who repeatedly runs ahead or does not line up for recess.

Explanation:

I got 100%

Nostrana [21]3 years ago
5 0

Answer: After a successful military career, Tiberius Gracchus went into politics trying to bring massive reforms to the military to its strength and morale.  

In the last hundred years, there had been several wars. Since the standard time served in the Roman army was twenty years, often times soldiers would leave their farms in the hands of wives and children. As farms in this situation went steadily into bankruptcy and were bought up by the wealthy upper class, latifundi or large estates, were formed.  

When the soldiers returned they had no where to go, so they went to Rome to join the mob of thousands of unemployed who roamed the city. Faced with this, the option of joining the army was unattractive, and number of soldiers and thus the power of Rome was shrinking.  

In 133 BC Tiberius proposed a law called Lex Agraria saying that the government would buy the land owned by the Patricians in excess of 500 acres. This land would then be distributed to soldiers upon completion of their service. This would solve two problems, attracting new recruits and also taking care of homeless war veterans.  

There was no question that the Patricians would get reimbursed because the Senate approved finances and they were also the ones who held most of the land. However, the bill was still unfeasible because there was not enough money currently to reimburse the Patricians without disrupting other activities. Then by chance that same year, king Attalus[?] of Pergamon died and left his entire fortune to Rome. Tiberius proposed that Attalus� fortune be used to fund the new law.  

Tiberius was one tribune and then there was one other. Each tribune had the power to veto the law, thus both had to agree. As Tiberius proposed the bill to the Senate, the other tribune threatened to veto, so Tiberius had him removed from the Senate so that he would be unable to deliver the veto, and the bill became law. However Tiberius offeneded many in the Senate with his personality, and as a result a group of Senators and their supporters killed Tiberius with a group of followers in the streets of Rome.  

This represents the first instance where the man with the most thugs was the one to gain power. This set a dangerous precedent, one that would signal the long decline of the republic of Rome

Explanation: i got an 100%

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Two balls have their centers 2.0 m apart. One ball has a mass of m1 = 7.9 kg. The other has a mass of m2 = 6.1 kg. What is the g
maks197457 [2]

Answer:

3.036×10⁻¹⁰ N

Explanation:

From newton's law of universal gravitation,

F = Gm1m2/r² .............................. Equation 1

Where F = Gravitational force between the balls, m1 = mass of the first ball, m2 = mass of the second ball, r = distance between their centers.

G = gravitational constant

Given: m1 = 7.9 kg, m2 = 6.1 kg, r = 2.0 m, G = 6.67×10⁻¹¹ Nm²/C²

Substituting into equation 1

F = 6.67×10⁻¹¹×7.9×6.1/2²

F = 321.427×10⁻¹¹/4

F = 30.36×10⁻¹¹

F = 3.036×10⁻¹⁰ N

Hence the force between the balls = 3.036×10⁻¹⁰ N

8 0
3 years ago
A student tosses a ball horizontally from a balcony to a friend 3.8 meters down below them. How long does the ball take to reach
Vsevolod [243]

Answer:

The time it takes the ball to fall 3.8 meters to friend below is approximately 0.88 seconds

Explanation:

The height from which the student tosses the ball to a friend, h = 3.8 meters above the friend

The direction in which the student tosses the ball = The horizontal direction

Given that the ball is tossed in the horizontal direction, and not the vertical direction, the initial vertical component of the velocity of the ball = 0

The equation of the vertical motion of the ball can therefore, be represented by the free fall equation as follows;

h = 1/2 × g × t²

Where;

g = The acceleration due gravity of the ball = 9.81 m/s²

t = The time of motion to cover height, h

Then height is already given as h = 3.8 m

Substituting gives;

3.8 = 1/2 × 9.81 × t²

t² = 3.8/(1/2 × 9.81) ≈ 0.775 s²

∴ t = √0.775 ≈ 0.88 seconds

The time it takes the ball to fall 3.8 meters to friend below is t ≈ 0.88 seconds.

8 0
3 years ago
A capacitor C is fully charged by connecting it to battery of V Volt. Then it is disconnected from battery. If the separation be
vodomira [7]

Answer:

Explanation:

i )

When it is disconnected with the battery , the charge stored in it becomes fixed . When the plate distance becomes half , its capacitance becomes twice from C to 2C . Let charge stored in it at the time of disconnection from battery be Q . Let plate separation reduces from d to d / 2

So charged stored in it will remain unchanged .

ii )

Potential difference = charge / capacitance

in the first case potential difference = Q / C

in the second case potential difference = Q / 2C

So potential difference becomes half .

iii ) electric field = potential diff / plate separation

in the first case electric field = Q / (d x C )

in the second case electric field = 2 Q / (d x 2C)

= Q / (d  x C )

So electric field remains unchanged .

iv)

energy stored in first case = Q² / 2C

In the second case energy stored = Q² / 2x2C

so energy stored becomes half .

4 0
3 years ago
Sandy is on a road trip. She leaves at 8:00 AM. It takes her 2 hours to drive 200 kilometers. She stops at a rest stop for half
lutik1710 [3]
The average velocity of Sandy is given by the total distance covered S divided by the total time taken t:
v= \frac{S}{t}

The total distance covered is
S=200 km+0+100 km=300 km
while the total time taken is 2 hours + half an hour (for the rest) + 1 hour and half, so
t=2h+0.5h+1.5 h=4 h
Therefore, the average velocity is 
v= \frac{S}{t}= \frac{300 km}{4 h}=75 km/h
0 0
3 years ago
1. The diagram shows a satellite traveling in uniform circular motion around the Earth.
FromTheMoon [43]

Answer:

M V R = constant      angular momentum is constant because  no forces act in the direction of V

Since M (mass) = constant

V R = constant

The force is directed along the gravitational force vector (towards the center of rotation)

6 0
2 years ago
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