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Question 1 

Based on the two histograms below, what does it imply about the variable's distribution?  To check for the normality, what other methods can you use besides histograms?






Background Information:
In the research beneath, researchers sought to discover what parenting behaviors aid children in feeling less pain throughout routine, straightforward medical procedures.
They did this by watching a variety of venepuncture (shot) operations for kids between the ages of 6 and 7 receiving a normal vaccination as part of their typical medical treatment take place in a local general practitioner place.  In order to manage for the potential impact of sex and gender difference in parent – child responding between mums and dads, as well as variation in parental responding in only one or single - parent households models, all parents who accompanied the children were moms in heterosexual mother child dyad. Before the treatment, all parents were instructed on and urged to use one of two behavioral support strategies for their kids: either using words to comfort them emotionally or using distraction techniques.
24 mom and child dyads in all were recruited by the researchers, and they divided them equally among the two support settings.  After the process, the kids were asked to use a graphical analog scale to indicate how excruciating they thought the blood collection process had been. They were shown a 100micrometers line with the words "highest pain possible" on the far right and "no physical discomfort" at all on the far left of the line.
The children were instructed to mark where they were in pain on the line, and the distance measured in millimeters from the extreme left to the mark served as the children's perceived pain level, which resulted in scores ranging from 0 to 100. Section 1 of the study was this.
Parents were also required to take a State Catastrophizing test, which measured how likely they were to use catastrophizing as a coping mechanism in stressful situations.
Section 2 of the investigation was this.











Answer

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Hi RioNii

This seems very similar to your previous questions. What feedback did you get from before?

Question 2 



A metal wire carries a current of 80.6 mA.
(a) Find the number of electrons that flow past a given point in the wire in 10.9 minutes.
electrons
(b) In what direction do the electrons travel with respect to the current?
o The magnitude is zero.
o opposite direction me direction

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Question 3 



CAPACITANCE
Instructions: Solve the following problems completely
and present your final answers in two (2) decimal
places.
1. When a 9.00 V battery is connected to the plates of
a capacitor, it stores a charge of 27.0 PC. What is
the value of the capacitance? If the same capacitor is
connected to a 12.0 V battery, what charge is
stored?

Answer

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Question 4 

Identify the  the solute and solvent and its state of matter in the following solutions. (2 points each)

 

    1. vinegar
    2. sea water
    3. air
    4. dental amalgam
    5. sparkling water
    6. natural gas
    7. sterling silver

Answer

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Question 5 

Instructions: Solve the following problems completely and present your final answers in two (2) decimal places.

2. A 20.0kg lead mass rests on the bottom of a pool.
 a. What is the volume of the lead?
b. What buoyant force acts on the lead?
c. Find the lead’s weight.
d. What is the normal force acting on the lead?

Answer

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letter a is as it is already sir and it does not need to be changed?

Question 6 

Instructions: State the given, required, equation, solution and answer to each of the problem.



How much power is developed by a jumbo jet cruises at 250 m/s when the thrust of its engine is 100 000 N?



2. Andres and Bonifacio each lift a 150-kg barbell at a height of 1.5 m off the ground. Andres lifts his barbell in 1 second and Bonifacio lifts his barbell in 2 seconds. a) Who does more work and b) who exerts



During The Teen Power Competition, Jack and Jill ran up the hill. Jack is Twice as massive as Jill. Who expended more work? Explain your answer.



1 .An object has a mass of 5kg.calculate its potential energy 3m above the ground.
2. Calculate the kinetic energy of a 1000 kg car travelling at 16.67 m/s.

Please lend me a helping hand guys, I really need help

Answer

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Question 7 

Provide answers with  complete solutions (Given, Required, Equation (Working Formula), Solution (Substitution of Values), and Final answer with correct unit) .

Body Thrown Horizontally from a Height
                 1.  A stone is thrown horizontally from the top of the building 50m high with an initial horizontal velocity of 30 m/s. Find a. the required time for the stone to reach the ground and b. the range.

                 2. A woman holds a hose 2m above the ground such that the water shoots out horizontally. The water hits the ground  at a point 3m away. What is the speed with which the water leaves the hose?

Uniformly Accelerated Motion
 1.  A car moving from 10 m/s  accelerates at the rate of 3 m/s2 in 5 seconds.  a. What is its final velocity? b. How much distance did it cover?

                2.  A trucking traveling at a speed of 8 m/s accelerates at 6m/s2 and covers a distance of 100m.  a. What is the final distance covered by the truck?  b.  How long did it take the truck to cover 100 m?

               3.   A body moves from 6 m/s to 10 m/s in 4 seconds. a. What is the body's acceleration? b. How far will the body travel?

               4.  A van traveled from 10 m/s  to 25 m/s and covered a distance of 150m.  a. What was its acceleration?  b. How long did it cover such distance?

Answer

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Question 8 

Solve for the resultant vector for the following sets of vectors using any of the different methods.

1. d1 = 10m, South; d2 =15m, North

2. F1 = 25 N, West; F2 = 18 N, West

3. a1 = 6 m/s ² , South; a2 = 9 m/s², West

4. F1 = 12 N, North; F2 = 8 N, 40° West of North

Answer

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