1,511.
A.
4.50N
B.
4.67N
C.
5.50N
D.
6.67N
E.
8.50N
Correct answer is C
No explanation has been provided for this answer.
1,512.
A simple pendulum makes 50 oscillations in one minute. What is its period of oscillation?
A.
0.02s
B.
0.20s
C.
0.83s
D.
1.20s
E.
50.00s
Correct answer is D
No explanation has been provided for this answer.
1,513.
A.
Fx
B.
Fcosθ/x
C.
Fx tanθ
D.
Fx sinθ
E.
Fx cosθ
Correct answer is E
No explanation has been provided for this answer.
1,514.
A.
6.4 Nm
B.
3.2 Nm
C.
1.6 Nm
D.
0.8 Nm
E.
0.0 Nm
Correct answer is C
couple moment = F x d = 4 x 0.4 = 1.6Nm
1,515.
A.
66 kg
B.
55 kg
C.
44 kg
D.
22 kg
E.
11 kg
Correct answer is A
Reading = mg + ma = m(g + a) = 55(10 + 2)
= 660N = 66kg
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