646.
A.
26.4N
B.
15.0N
C.
13.2N
D.
10.0N
Correct answer is C
No explanation has been provided for this answer.
647.
A.
28.0N
B.
48.0N
C.
50.0N
D.
288.0N
Correct answer is C
Efficiency = \(frac{M.A×100}{V.R}\)
V.R = 6
40= \(frac{M.A×100}{6}\)
M.A = \(frac{6 ×40}{100}\)
M.a=2.4
M.A= \(frac{L}{E\)
E= \(frac{120}{2.4\)
E= 50
648.
A.
cooling temperature
B.
boiling point
C.
melting point
D.
vaporization point
Correct answer is C
No explanation has been provided for this answer.
649.
A.
1.73
B.
1.50
C.
0.87
D.
0.57
Correct answer is A
No explanation has been provided for this answer.
650.
A.
0.3A
B.
0.8A
C.
1.0A
D.
1.8A
Correct answer is C
No explanation has been provided for this answer.
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