The diagram above represents a portion of a micrometer screw 20 gauge. What is its reading?
3.70mm
3.67mm
3.50mm
3.33mm
3.17mm
Correct answer is E
No explanation has been provided for this answer.
40√3N
60N
120N
200N
240N
Correct answer is C
E = M.A/V.R ; 50/100 = M.A/2
M.A = 1; L/E = 1
E = L = 120N
Which of the following are contact forces?
I. Force of tension
II. Force of fiction,
III. Magnetic force
IV. Force of reaction.
I,II and III only
I, II and IV only
I, III and IV only
II, III and IV only
l and IV only.
Correct answer is B
No explanation has been provided for this answer.
5.0m
2.0m
0.4m
0.2m
0.1m
Correct answer is D
Kinetic energy at O = P.E at P 1/2mV = mgh
h = v/2g = 0.2m
6.25 x 10-14N
1.60 x10-13N
5.00 x 10N
1.00x102N
2.00x1O2N
Correct answer is D
F = ma = 2.5 x 10-6 x 4 x 107 = 100N