Answer: 937.5 J
Step-by-step explanation:
we LOVE US SOME PHYSICS!!! mmm i LOVE PHYSICS! not really but you know its a matter of preference. What is kinetic energy? The unit of kinetic energy is Joules. Thankfully, this setup already seems to be in the order of the kinetic energy formula=
now isnt that beautiful? literally all we have to do is simple algebra at this point.
5 squared is 25. multiply 25 by 75. we get 1875. multiply this by 0.5 (which is another way to write 1/2) and we get
937.5 J (1 kg m^2 /s ^2)
I am not 100% positive but I think it is 4117.66
Answer: n = 2401
Step-by-step explanation:
Given;
Confidence level = 2% - 99%
n = ? ( which is the sample size is unknown ).
Solution:
Where;
n = [z/E]^2*pq
Since no known value for ( p ) estimate is given, the "least biased" estimate is p = 1/2
Substituting the given data into the formula.
n = [1.96/0.02]^2(1/2)(1/2)
n = 2401
The minimum number of truck drivers the statistician needs to sample for an accurate result is 2401
Answer:
150cm^2
Step-by-step explanation:
Volume of the cube=125cm^3
Side^3=125cm^3
Side =5cm
So the total surface area =6×side^2
=6×5×5
= 150cm^2
So the total surface area is150cm^2