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1156

The pair of physical quantities that are scalar only are ?

A. volume and area
B. moment and momentum
C. length and displacement
D. Impulse and time

View Answer & Discuss JAMB 2013

1157

A simple pendulum of length 0.4m has a period of 2s. What is the period a similar pendulum of length 0.8m at the same place?

A. 8s
B. 4s
C. 2\(\sqrt{2}s\)
D. \(\sqrt{2}s\)

View Answer & Discuss (3) JAMB 2013

1158

A train with an initial velocity of 20ms^-1 is subjected to a uniform deceleration of 2m^-2. The time required to bring the train to a complete halt is?

A. 5s
B. 10s
C. 20s
D. 40s

View Answer & Discuss JAMB 2013

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1159

Calculate the apparent weight loss of a man weighing 70kg in an elevator moving downwards with an acceleration of 1.5ms^-2.

[g = 10ms^-2]

A. 686N
B. 595N
C. 581N
D. 105N

View Answer & Discuss (14) JAMB 2013

1160

A piece of cork floats in a liquid. What fraction of its volume will be immersed in the liquid?

[Density of the cork = 0.25 x 10³kgm^-3, Density of the liquid = 1.25 x 10³kgm^-3]

A. 0.8
B. 0.5
C. 0.2
D. 0.1

View Answer & Discuss (2) JAMB 2013

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