If the total cost plus shipping is greater than $35,then you receive a 10% discount off the original selling price. Do you quali
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The answer is:
Answer: 34
Units: Joules
The kinetic energy is the work needed to accelerate an object to a determined speed.
The kinetic energy can be calculated using the following equation:
Where,
m, is the mass of the object.
v, is the speed of the object.
So, we are given the information:
Then, substituting and calculating we have:
Have a nice day!
Answer: 2.5
Step-by-step explanation:
Let be the population mean .
Then, Null hypothesis :
Alternative hypothesis :
We assume that this is a normal distribution.
Given : Sample size : n=25 , since the sample is small (n<30) so we cannot apply z-test . Thus the test is t-test.
Sample mean :
Population standard deviation :
The test statistic for population mean is given by :-
i.e.
Hence, the observed critical value = 2.5