A chemical reaction is when two elements or radicals change places with two other elements or radicals is a ... reaction
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Efficiency or is calculated by formula:
where
also efficiency has no unit.
Now put in the data and calculate the efficiency.
The efficiency of the machine is 0.8
If you want to get percentage just multiply by 100 and you get 80%
Hope this helps.
r3t40
Answer:
Explanation:
Stiffness of spring k equal to 4 lb/ft.
Unstretched length of the spring L is equal to 0.5 feet.
Weight of the collar W is 15lb
Radius of curvature of curve guide is 1 feet
length of vertical rod is 1.5 feet
Initial speed of collar when released from rest at A is 0 feet per seconds
use the energy conservation equation
Estimate the potential energy , component as position B as below
Estimate the kinetic energy , component as position A as below
Estimate the kinetic energy , component as position B as below
Substitute 20.5lb- ft for
0.5lb-ft for
0lb -ft for
= 16.05ft/sec
