A permanent magnet is made from metal and an electromagnet uses a metal core. Which metal is suitable for each of these purposes?
A reactivity series (or activity series) is an empirical, calculated, and structurally analytical progression of a series of metals, arranged by their "reactivity" from highest to lowest.
A clothing shop uses a barcode reader at the checkout. The checkout is linked to a stock control system. The system monitors stock levels and automatically keeps them above a
“People who do a job that claims to be creative have to be alone to recharge their batteries. You can’t live 24 hours a day in the spotlight and remain
1.What is the SI unit of electric charge? a) Ampere b) Coulomb c) Volt d) Ohm 2.What does Gauss's Law in electrostatics describe? a) Electric flux through a closed surface
Synthetic polymerization refers to the process of chemically synthesizing polymers, which are large molecules composed of repeating subunits called monomers.
noble gas, any of the seven chemical elements that make up Group 8 (VIII) of the periodic table.
Brownian motion, or pedesis (from Ancient Greek: πήδησις /pɛ̌ːdɛːsis/ "leaping"), is the random motion of particles suspended in a medium (a liquid or a gas).[2] This pattern of motion typically
These questions should stimulate in-depth discussions about polymerization, its mechanisms, applications, and implications in various fields.
John takes t minutes to cycle to school. a It takes him three times as long to walk to school. Write down, in terms of t, how long it takes
So, look out for the past examinations on the same subject and trust the one writing this article that you will find similar questions in your next exam.
The field can be viewed as the combination of an electric field and a magnetic field. The electric field is produced by stationary charges, and the magnetic field by moving
In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic table (groups 3 to 12), though the elements of group 12 (and
Which language is used for creating Web Pages? (A) PASCAL (B) C (C) HTML (D) BASIC
Enterprise is one of the four factors of production. Which of the following is a definition of enterprise?
Hydrogen can be used as a fuel. Which properties of hydrogen would be advantages and which would be disadvantages? 1 2 3 Hydrogen is expensive to produce. Hydrogen reacts exothermically
An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow.
Students often make several common mistakes in mathematics, which can hinder their understanding and performance. Here are some of
In physics, mathematics, and related fields, a wave is a propagating dynamic disturbance (change from equilibrium) of one or more quantities. Waves can be periodic, in which case those quantities
In the realm of academia, there's a persistent myth that floats around among students: the idea that you can skip class and still manage to excel academically. It's a tantalizing