At a football game, the “wave” might circulate through the stands and move around the stadium. In this wave motion, people stand up and sit down as the wave passes. What type of wave would this be characterized as?

For a wave traveling along the +x axis with an amplitude of 0.02 m, a frequency of 4.78 Hz, and a wavelength of 1.57 m is represented by

What is the frequency of a wave which has a period of 6.00 ms?

The water waves in Putrajaya Lake is represented by the equation y = 1.0 sin (15t – 0.5x) where x and y are in meter and t is in second. What is the amplitude?

Compounds which have the same molecular formula but different structural formula is known as

The structural formulae of the compounds are given below:

Structure 1 = CH3CH2CH2CH2Br

Structure 2 = (CH3)2CHCH2Br

Structure 3 = (CH3)3CBr

The relationship of the structural formulae is

Reaction in which replacement of one atom or group of atoms are involved is known as

Which of the following reactions is an elimination?

Which of the following compounds is not an ether?

Wahab made 108 telephone calls in the month of January. The duration (minute) of each call is recorded in the following table.

Duration ⋯⋯⋯⋯ Frequency

1- 3 ⋯⋯⋯⋯ 7

4 - 6 ⋯⋯⋯⋯ 6

7 - 9 ⋯⋯⋯⋯ 35

10 - 12 ⋯⋯⋯⋯ 33

13 -15 ⋯⋯⋯⋯ 15

16 -18 ⋯⋯⋯⋯ 2

Calculate the 20th percentile for the duration of telephone calls

The marks awarded to 42 students in an examination are summarized in the table

Marks ⋯⋯⋯⋯⋯⋯⋯ Frequency

20 - 29 ⋯⋯⋯⋯⋯⋯ 5

30 - 39 ⋯⋯⋯⋯⋯⋯ 12

40 - 49 ⋯⋯⋯⋯⋯⋯ 16

50 - 59 ⋯⋯⋯⋯⋯⋯ 9

By calculation, find standard deviation

What is the mode of the following numbers?

12, 11, 14, 10, 8, 13, 11, 9

Differentiate y = x² + 6 / 2x - 7

You begin to observe to the color of clothing your employees wear. Your goal is to find out what color is worn most frequently so that you can offer company shirts to your employees.

Monday : Red, Blue, Black, Pink, Green and Blue

Tuesday : Green, Blue, Pink, White, Blue and Blue

Wednesday : Orange, White, White, Blue, Blue and Red

Thursday : Brown, Black, Brown, Blue, White and Blue

Friday : Blue, Black, Blue, Red, Red, Red and Pink

What is the mode of the colors above?

Identify the input based on the problem statement below:

‘Write a program to read in 10 numbers and compute the average, maximum and minimum values’.

Identify the output(s) based on the problem statement below:

‘A program will ask user to enter the value of a radius. Display the message “Radius is invalid” if the value of the radius is negative. Otherwise, calculate and display the area of the circle’.

Identify the input(s) based on the problem statement below:

‘A government tax of 10% and service tax of 5% will be added to the price of a set meal bought at McDonald. Calculate the total price that Raziq has to pay for a set of meal’.

Identify the input(s) based on the problem statement below:

‘Calculate and print the area of a circle’.

Identify the input(s) based on the problem statement below:

‘Calculate and display the overtime pay received by an employee. Overtime rate is RM200 per hour’.

What is significance of segmentation for Valanga sp.

Body of Mollusca have three main parts. Name the body parts of Achatina sp.

Which phylum does not have body cavities (Acoelomates) ?

Which Phylum have two germ layer (diploblastic) ?

Kingdom Fungi have filamentous body plan. Name the basic unit for Fungi.

Name the phylum for Ascaris sp. ?

State the most appropriate control structure based on the problem statement below:

‘A student is only eligible for scholarship if his/her parent’s monthly income is less than RM2,000’.