A ripple travels over the surface of some water. Its wavelength is 2 m, its amplitude is 0.1 m and
its frequency is 0.5 Hz.The speed of the ripple is:
2. Question | Physics
Boiling and evaporation both involve a liquid turning into a vapour (i.e. a gas).The following
statements relate to water.Which one is NOT true?
3. Question | Biology
Which of the following substances contains the elements carbon, hydrogen, oxygen and
nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins
4. Question | Mathematics
If x = 2 and y = -1, then
3x - 5y / xy2
5. Question | Principles Of Accounts
On January 1, a firm's capital is $4,600. On December 31, of the same year, the following information was provided: Drawings $850, Total Assets $10,000. Loan Outstanding $950 and Creditors $4,000. What was the Net Profit that year?
6. Question | Chemistry
When two solutions are mixed and give a solid product we call it:
7. Question | Mathematics
In the rectangle above, if ∠AEB = 80°, then
∠DAC =
8. Question | Chemistry
All of these are ordered crystalline structures EXCEPT for:
9. Question | Mathematics
What is the value of u in the sequence 2 , 7 , 14 , 23 , 34 , u ?
10. Question | Mathematics
Which of the following is a prime number?
11. Question | Mathematics
8x - 4(x - 5) =
12. Question | Biology
Anaerobic respiration takes place:
13. Question | Principles Of Accounts
On May 1, a petty cashier received Imprest of $150. During the month, petty cash expenses amounted to $77.00 and $2.00 was received from a member of staff who made a personal telephone call. How much cash is needed to restore the imprest on 31 May?
14. Question | Biology
Plant stems grow towards a light source.This is an example of:
15. Question | Physics
Which one of the following statements about diffraction is true?
16. Question | Chemistry
All of these are compounds EXCEPT for:
17. Question | Biology
Which one of the following diagrams illustrates short-sightedness?
(F = Focal point)
18. Question | English A
Instruction: Choose from the four options the word or pair of words which BEST completes the meaning of the sentence.
Despite his short-temper, his willingness to give of his wealth to help others to succeed led people to call him ............
19. Question | Chemistry
None of these solutions in water conducts electricity EXCEPT for:
20. Question | Integrated Science
Compared to industrialised countries, developing countries: