Search & Filtering
In a particular factory, the team leader is an hourly paid production worker that leads a small team. In addition to hourly pay, team leaders earn a fixed monthly bonus. Team leaders are required to attend a minimum number of hours of training per year. Design a TeamLeader class that extends the Production Worker Class. The LeamLeader class should have fields for the monthly bonus amount, the required number of training hours, and the number of training hours that the team leader has attended. Write one or more constructors and the appropriate accessor and mutator methods for the class. Demo the class by using a program that uses the TeamLeader object.
. The activity of a source was measured as follows
Time/days 0 2 3 4 5
Activity 137 63 44 31 22
The background count was 7
i. Explain background count. How does it occur?
ii. Sketch the above graph and determine the half life of the source.
Discuss Thomson’s atomic model ( what was his proposal on how an atom looks like?).
Explain its failures.
1. In an experiment, 112cm3 of carbon (iv) oxide gas were collected at s.t.p. How many molecules of the gas are present? (molar volume of the gas at stp=22.4dm, L=6.02 x 1023mol-1)
Marcus has a pension plan with an annuity that is guaranteed to earn 13% interest compounded semi-annually. He plans to work for 10 years before retiring and would then like to be able to draw an income of $110,000.00 per annum for 18 years. How much should he deposit annually into his retirement fund to accomplish this?
Write the array implemention of binary search tree.
Write the following functions :
1)insert
2)delete
3)search
4)display
Note:
No global declarations
Test run in main
Create a class named INVOICE that contains fields for an item number, name, quantity, price, and total cost. Create instance methods that set the item name, quantity, and price. Whenever the price or quantity is set , recalculate the total (price times quantity ). Also include a DISPLAYLine() method that displays the item number, name, quantity, price for each INVOICE. Save the class as INVOICE.java
Sample output
item # : 111
Item name: chips
Quantity:2
Price: 1.00
Total Cost: 2.00
Name your database using your names as: “db_first_last_studentNumber”. ∙ Name all your tables in your database using this format: “tbl_tableName”. ∙
∙ This mini-project is worth 20 marks (10 marks for a working GUI, 10 marks for performing CRUD operations on a DB through the GUI).
Milestone:
For this unit, you are required to develop a GUI application using Java. The application should connect to a database and should be able to perform any CRUD operation.
Main goal:
Develop a Java application with GUI for a primary school called Duka.
Functional Requirements:
The application should allow:
i. A shop attendant to be able to login to upload stock of items (with prices). ii. A buyer be able to search for items, get their prices and make an order.
Non-functional Requirements:
The application should:
i. Have a user-friendly GUI for both shop attendant and buyer.
ii. Not crash in case a user makes a mistake, instead it should provide a clarification/warning.
The Haber process for the synthesis of ammonia from nitrogen and hydrogen gases in an exothermic process.
N2(g) + 3H2(g) ⇌ 2 NH3 (g) ΔHrxn= -92.4 kJ
How will the following conditions affect the equilibrium of the system?
a) adding more N2 =
b) removing 3H2 =
c) removing NH3 =
d) increasing the pressure in the reaction vessel =
e) decreasing the temperature of the system =
mass of 5 000kg is taking off straight up from the surface of the Earth. How much upwards force do the rockets engine need to produce to cause the rocket to accelerate straight up at 15m/s2?
#339914 on Dec 2023