Two separate forces are acting on a bar to cause it to rotate clockwise. One force is 20 N, at a
distance of 3 m out from the pivot; the second force, 2 m further out, is 10 N. Their combined
moment is:
2. Question | Social Studies
Which of the following would undermine the authority of parents in the home?
3. Question | Integrated Science
Absolute zero is:
4. Question | Mathematics
$x is divided among three boys, Ryan,
Keith and Andrew, in the ratio 2 : 3 : 7,
respectively.
If Andrew gets $15 more than Keith,
what is the value of x ?
5. Question | Social Studies
Natural Increase in Population
The natural increase in population for country X in 2006 was
6. Question | Biology
Which of the following substances contains the elements carbon, hydrogen, oxygen and
nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins
7. Question | Physics
The method by which certain uranium and plutonium nuclei can release energy in a reactor is
known as:
8. Question | English A
Instructions: Select the option A, B, C or D that BEST describe the sentence.
Traffic bottlenecks must be ironed out if we are to prevent giant traffic congestion.
9. Question | Mathematics
The table shows the distribution of the ages
of 25 students.
What is the probability that a student chosen
at random is AT LEAST 13 years old?
10. Question | Chemistry
The number of atoms in a diatomic molecule is:
11. Question | Social Studies
THE ITEM is based on the following extract.
Unemployment and hard economic conditions have forced both parents in some Caribbean families to migrate, leaving an elder son or daughter to care for the younger brothers and sisters.
Which of the following problem is LEAST likely to affect the younger brothers and sisters?
12. Question | Biology
Which one of the following is NOT a reflex action?
13. Question | Information Technology
A __________ is a device that is externally connected to and under the control of the central processing unit.
14. Question | Chemistry
The common name for silicon dioxide is:
15. Question | Chemistry
At 20 ℃ all of the halogens are:
16. Question | Chemistry
We use expanded polystyrene cups for heat of reaction experiments because the cups are:
17. Question | Principles Of Accounts
Which of the following are the functions of a book-keeper?
