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43 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

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43 questions

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Question 21

jamb 1993

Two forces of magnitudes 7N and 3N act at right angles to each other. The angle \(\theta\) between the resultant and the 7N force is given by

Acos\(\theta\) = \(\frac{3}{7}\)

Bsin\(\theta\) = \(\frac{3}{7}\)

Ctan\(\theta\) = \(\frac{3}{7}\)

Dcot\(\theta\) = \(\frac{3}{7}\)

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Question 22

jamb 1993

The external and internal diameter of a tube are measured as (32 ± 2)mm and (21 ± 1)mm respectively. Determine the percentage error in the thickness of the tube.

A27%

B14%

C9%

D3%

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Question 23

jamb 1993

Which of the following quantities has the same unit as the watt?

AForce x time

BForce x distance

CForce x acceleration

DForce x velocity

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