56 Newtons bc w=F×D so if you divide by D on both side you get w/D=F
        
                    
             
        
        
        
Answer:
a.  μ 3 ± 1.8 = [1.2,4.8]
 3 ± 1.8 = [1.2,4.8]
b. The correct answer is option D. No, because the sample size is large enough.
Explanation:
a. The population mean can be determined using a confidence interval which is made up of a point estimate from a given sample and the calculation error margin. Thus:
μ ±(t*s)/sqrt(n)
±(t*s)/sqrt(n)
where:
μ = is the 95% confidence interval estimate
 = is the 95% confidence interval estimate
x_ = mean of the sample = 3
s = standard deviation of the sample = 5.8
n = size of the sample = 41
t = the t statistic for 95% confidence and 40 (n-1) degrees of freedom = 2.021
substituting all the variable, we have:
 μ 3 ± (2.021*5.8)/sqrt(41) = 3 ± 1.8 = [1.2,4.8]
 3 ± (2.021*5.8)/sqrt(41) = 3 ± 1.8 = [1.2,4.8]
b. The correct answer is option D. No, because the sample size is large enough.
Using the the Central Limit Theorem which states that regardless of the distribution shape of the underlying population, a sampling distribution of size which is ≥ 30 is normally distributed.
 
        
             
        
        
        
Answer:
The change in energy of the gas during the process is  joules.
 joules.
Explanation:
We can represent this process by the First Law of Thermodynamics, in which gas does work on its surroundings and absorbs heat from there to describe its change in energy. In other words:

Where:
 - Heat absorbed by the gas, measured in joules.
 - Heat absorbed by the gas, measured in joules.
 - Work done by the gas, measured in joules.
 - Work done by the gas, measured in joules.
 - Change in energy, measured in joules.
 - Change in energy, measured in joules. 
If we know that  and
 and  , the change in energy of the gas is:
, the change in energy of the gas is:


The change in energy of the gas during the process is  joules.
 joules.
 
        
             
        
        
        
Answer:
g
Explanation:
if an object is thrown upward or at any angle, the acceleration acting on that object is the same as acceleration due to gravity which always acts towards the vertically downwards direction because there is no acceleration or the force acting on the object in horizontal direction.
Thus, the acceleration is same as acceleration due to gravity g.  
 
        
             
        
        
        
How do you write a letter to the editor?
Open the letter with a simple salutation. ... 
Grab the reader's attention. ... 
Explain what the letter is about at the start. ... 
Explain why the issue is important. ... 
Give evidence for any praise or criticism. ... 
State your opinion about what should be done. ... 
Keep it brief. ... 
Sign the letter.