Two football players are running toward each other. One football player has a mass of 105 kg and is running at 8. 6 m/s. The other player has a mass of 90 kg and is running at -9. 0 m/s. What is the momentum of the system after the football players collide? 93 kg · m/s 1,713 kg · m/s. 810 kg · m/s. 903 kg · m/s.

Answers

Answer 1

The correct answer is P = 1740 kg · m/s, we got this answer by applying the momentum expression which is P = Δ(mv), based on the fact that the mass is not constant

Given data

Mass of Player one = 105kg

Mass of Player two = 93Kg

The Velocity of Player one = 8.6m/s

The Velocity of Player two = -9.0m/s (the negative sign indicates the opposite direction to player one)

Applying Newton’s Second Law in Terms of Momentum because the mass is not constant

When Newton’s second law is expressed in terms of momentum, it can be used for solving problems where mass varies,

We also want to assume that the players stuck together after the collision

An inelastic collision, in contrast to an elastic collision, is a collision in which kinetic energy is not conserved due to the action of internal friction.

P = M1V1 + M2V2

P= 105*8.6+93*9.0

P = 903 +837

P = 1740 kg · m/s.

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Answer:

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Answer: 1%

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The mean of a dataset is the average of the dataset.

The mean of the sample in the third row is 2.2

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From the complete question, the samples in the third row are:

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The mean of a dataset is calculated using:

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Where:

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So, we have:

[tex]\bar x = \frac{3 + 4 + 3 + 0 + 1}{5}[/tex]

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[tex]\bar x = \frac{11}{5}[/tex]

Divide 11 by 5

[tex]\bar x = 2.2[/tex]

Hence, the mean of the sample in the third row is 2.2

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Answer:

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Answer:

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Ideally, you need at least 40 continuous days of warm temps over 70 F. (21 C.) to grow rice.

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Answer:

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Explanation:

Answer:

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The answer to this is false

Depth perception is not important in determining proper following distance is the false statement.

What is lack of depth perception?

The brain is able to integrate both images into a single 3-D image in a process called stereopsis. With the help of this information, it is possible to calculate both the distance between the items and their distance from one another.

Thus, the statement is not true.

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The opportunity cost in this scenario is Sightseeing.

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It is an example of intrinsic motivation.

Motivation can be described as the factors that drive a person to act in a certain manner. These factors can be material, cognitive, emotional or social. Motivation can lead to either positive or negative outcomes. For example, a person motivated to succeed would spend hours studying while a person whose aim is to make quick profit can be motivated to engage in crime.

Intrinsic motivation is a type of motivation in which the driving force to carry out an activity is due to internal factors. Shira's desire to do well is not externally motivated. It is due to her desire to succeed.

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Answer:

the answer is extrinsic

Explanation:

ED 2022

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Considering the situation described above, Ahmet’s reaction to the toy best demonstrates the process of generalization.

The definition of generalization of reaction

Generalization of reaction is a term used to describe the propensity to react similarly to different but related stimuli.

Generalization concept in this situation

Given that Ahmet is allergic to dogs and, at the same time, has an allergic reaction to a stuffed toy dog, this is a form of generalization.

Hence, in this case, it is concluded that the correct answer is "generalization."

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Answer:

The answer to your question is true

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Smartphones were created by humans and therefore the concerns that arise from them should be our responsibility. I don’t know how they would be consider dilemmas.

David is a sophomore in high school and is studying for his united states history exam, in which he must recall all of the battles in the american revolutionary war. At first, he begins by just trying to group all of the facts associated with each battle into his memory. When he realizes he is forgetting some battles, he begins repeatedly associating the events that occurred in each battle with the place where the battle occurred. He finds he remembers the battles more readily this way, but he is still having a hard time remembering all the facts associated with each battle. Because he continues to think this is the best way to approach learning, he continues to study in this manner. After several bad grades, he realizes that his studying technique is not working, so he asks a friend who is doing better at remembering everything how she is studying. She said she is making up stories about each battle and how each battle is connected with other battles. David tries this method and finds it was much more effective for him.

Answers

People are often influenced by different things that affect their behavior. The concepts that relates to this scenario is explained below.

Metacognition is known to be the act of thinking about one's own thought and learning. David first use a method to remember the battles in the American Revolutionary war, and later on uses an alternative method. He asked a friend when he saw his errors. This shows that David understood his thought process and is trying too control it.

Method of loci is known as a strategy of memory enhancement that uses visualizations to boast e recall of information. David uses this to link the events that happened in each battle with the place where the battle took place.

Deep processing is known as a step taken in processing spectrum of mental recall via examining of language used.  David's friend uses stories for each battle and connects it with other battles. David then uses deep processing via examining the battles too.

Rehearsal often uses repetition to remember things. David always practicing boast his remembrance of the battles in the American Revolutionary War.

Elaboration is used to enhance total remembrance. By making up stories about each battle and relates it to other battles, it aid David in learning.

Chunking is known as the act of taking different pieces of information and placing them into larger units. David friends sees each battle as a single unit and then they often link up the different events together.

Mental set is known as the ability of the brain to stick with the most familiar solution to a problem and ignore others. David uses the friends method and apply as it aid remembrance more.

See the other part of the question

Explain how each of the following concepts relates to this scenario.

Metacognition

Method of loci

Deep processing

Rehearsal

Elaboration

Chunking

Mental set

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Managers at eller manufacturing are considering purchasing a new refrigerated delivery truck that will produce equal annual cash flows of $36,000 for 6 years. The truck’s net present value is $12,780, its cost is $144,000, its useful life is 6 years, and its annual depreciation expense (no salvage value) is $24,000. What is the discount rate used by eller to evaluate this project?.

Answers

It should be noted that the discount rate that was used by Eller to evaluate this project is 10%.

From the information given, the following can be depicted:

Annual cash inflows = $36,000 Period of cash inflows = 6 years Cash outlay (initial investment) = $144,000 Depreciation expense = $24,000 Estimated useful of trucks = 6 years Net present value = $12,780

It should be noted that the Present Value Annuity Factor at 10% for 6 years is given as 4.355

Therefore, the Present Value of Annuity cash inflows will be

= ($36,000 x 4.355) =  $156,780  

Less initial investment cash outlay =  $144,000

Net present value =  $12,780

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which expression is equivalent to a+4a+8a+4a+8

Answers

Answer:

17a+8

Explanation:

combine like terms (all of the A's) and then the rest of the equation (8)

Answer:

17a+8

Explanation:

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