(a) The velocity ratio of the screw is 1570.8.
(b) The mechanical advantage of the screw is 785.39.
The velocity ratio of the screw is calculated as follows;
V.R = 2πr/P
where;
V.R = (2π x 0.25)/(0.001)
V.R = 1570.8
E = MA/VR x 100%
0.5 = MA/1570.8
MA = 785.39
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Answer:
true
Explanation:
this is the answer to this question
14
21miles/3=7
7*2=14
22.67 m/s
See in the picture.
Ecliptic
The path the sun, moon, and planets take across the sky as seen from Earth. It defines the plane of the Earth's orbit around the sun. The name "Ecliptic" comes from the fact that eclipses take place along this line.