By measuring the potential energy of an object relative to the ground, and the object's mass, you can calculate its speed when i
2 answers:
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Explanation:
Some standard unit conversion are 1 mile = 1.609344 km, 1 ft.= 30.48 cm,
1 km= 1000 m or 1 m = 0.001 km and 1 m= 100 cm or 1 cm=0.01 m.
Now, use these values to convert the given lengths.
A. length of cave = 5 miles (given)
From standard value 1 mile = 1.609344 km
5 miles =
1.609344 km= 8.04672 km,
5 miles =8.04672
1000 m= 8046.72 m [ as 1 km = 1000 m]
5 miles = 8046.72
100 cm=804672 cm
B. Height of the waterfall = 1235 ft. (given)
1 ft.= 30.48 cm [ from standard value]
1235.2 ft.= 1235.2
30.48 cm=37648.896 cm,
1235.2 ft.=37648.896
0.01 m =376.48896 m [ as 1 cm = 0.01 m]
1235.2 ft.=376.48896
0.001 km =0.37648896 km [ as 1 m = 0.001 km]
C. Height of the mountain= 21320 ft. (given)
From standard value: 1 ft.= 30.48 cm
21320 ft.= 21320
30.48 cm=649833.6 cm,
21320 ft.=649833.6
0.01 m =6498.336 m [ as 1 cm = 0.01 m]
21320 ft.=6498.336
0.001 km =6.498336 km [ as 1 m = 0.001 km].
D. Depth of canyon =6630 ft.
From standard value: 1 ft.= 30.48 cm
6630 ft.= 6630
30.48 cm=202082.4 cm,
6630 ft.=202082.4
0.01 m =2020.824 m [ as 1 cm = 0.01 m]
6630 ft.=2020.824
0.001 km =2.020824 km [ as 1 m = 0.001 km].
Answer:
greater than 0.10
Explanation:
The null hypothesis is:
The alternate hypotesis is:
Our test statistic is:
In which X is the statistic, is the mean,
is the standard deviation and n is the size of the sample.
We have that:
We are testing if X is greater than 0.45, so our pvalue is 1 subtracted by the pvalue of z = t = 0.45.
z = 0.45 has a pvalue of 0.6736
1 - 0.6735 = 0.3264
So our pvalue is 0.3264, which is greater than 0.10.
So the correct answer is:
greater than 0.10