The reason the efficiency is always less than 100% is because there is always some sort of friction in the machine.
Answer: because of friction
The capacitance of two square parallel plates will be 1.777 farads.
<h3>What is the capacitance of two parallel plates?</h3>
The body's capacity to hold electric charge is constrained by capacitance. There is a capacitance for each capacitor. Two metallic sheets of area A, spaced by d, make up the standard parallel-plate capacitor.
The parallel plate capacitor formula is given by:
C = ε Ad
Two square parallel plates 6.7 cm on a side are separated by 1.8 mm of paraffin. The dielectric constant of paraffin is 2.2. Then the capacitance of two square parallel plates will be given as,
C = ε Ad
C = 2.2 x 0.67 x 0.67 x 1.8
C = 1.777 farad
Two parallel square plates will have a capacitance of 1.777 farads.
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The answer to the problem b.
I personally would write it in a Ballad format.
Ballad poems tell a story.
Narrative poems tells a story often making the voices of the/a narrator or character.
Haiku poems rarely rhyme.
Sonnet poems are rhythmic.
Answer:
The acceleration of the object is 
Explanation:
we know that
The acceleration is the change in the velocity, divided by the time
Let
v -----> the change in the velocity in m/sec
t ----> the time in sec

we have that


substitute


substitute in the formula

therefore
The acceleration of the object is 
Is negative because is a deceleration