A permanent magnet is made from metal and an electromagnet uses a metal core. Which metal is suitable for each of these purposes?
“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
Which sex chromosomes are present in all mature human sperm cells? A both X and Y chromosomes B either X or Y chromosomes C only X chromosomes D only Y
Principle of Moments The principle of moments states that when in equilibrium the total sum of the anti clockwise moment is equal to the total sum of the clockwise moment.
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
Here are 40 objective questions related to nuclear physics: 1.What is the smallest component of an atom's nucleus? a) Proton b) Neutron c) Electron d) Quark 2.What force holds the
“Accept yourself, love yourself, and keep moving forward. If you want to fly, you have to give up what weighs you down.” ― Roy T. Bennett, The Light in the
Surds and squares are fundamental concepts in mathematics, particularly in the realm of algebra and arithmetic. Let's explore each of these concepts individually and then see how they relate to
Evaluate the limit as x approaches negative infinity of the function f(x) = (2x^3 - 4x^2 + 3) / (5x^3 + 2).
A student takes 2 g samples of calcium carbonate and adds them to 20 cm3 samples of dilute hydrochloric acid at different temperatures. She measures how long it takes for
Which metal would be suitable for all of the following uses? • making aircraft bodies • making food containers • making overhead power cables
Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer. Thermometers are calibrated in various temperature scales that historically have
Thermal processes refer to the manner in which a state of a system can change from an initial state to a final state1. In thermodynamics, it is helpful to divide
The coordination centre, such as the brain, spinal cord or pancreas, which receives and processes information from receptors around the body.
In organic chemistry, an alkene is a hydrocarbon containing a carbon–carbon double bond. The double bond may be internal or in the terminal position.
What is a wireless network? Answer: A wireless network is a network that allows devices to connect and communicate wirelessly...
Which language is used for creating Web Pages? (A) PASCAL (B) C (C) HTML (D) BASIC
In chemistry and manufacturing, electrolysis is a technique that uses direct electric current (DC) to drive an otherwise non-spontaneous chemical reaction. Electrolysis is commercially important as a stage in the
Synthetic polymerization refers to the process of chemically synthesizing polymers, which are large molecules composed of repeating subunits called monomers.
"The only way to learn mathematics is to do mathematics." - Paul Halmos