Answers to the above Questions. Leave a comment if you find a wrong answer or you have ans=y questions.1. B. Sound wave 2. B. Sound wave 3. B. Crest 4.
An alarm clock is controlled by a microprocessor. It uses the 24 hour clock. The hour is represented by an 8-bit register, A, and the number of minutes is represented
Fission is the process utilized in nuclear power plants to generate electricity, where controlled nuclear reactions are used to produce heat that boils water and drives turbines to generate electricity.
A student has four pieces of resistance wire made of the same material. Each piece is connected in turn between the terminals X and Y in the circuit.
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
Enzymes are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different
“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
Enterprise is one of the four factors of production. Which of the following is a definition of enterprise?
Calculate log base 10 of 10000. Simplify log base 2 of 1/8. Solve for x: log base 5 of x = 1/3.
Word problems provide a bridge between abstract mathematical concepts and their practical application in real-life situations. They help students understand the relevance and
Motion involves a change in the position of an object over time. Motion influences when objects move and the forces necessary to make them move.
An atom is a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons. The atom is the basic particle of the chemical elements,
Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
In the Periodic Table, how does the metallic character of the elements vary from left to right across a period? A It decreases. B It increases. C It increases then
These words may sound the same when spoken, but they have different meanings, spellings, and usage. It's important...
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
An acid is a substance that forms hydrogen ions H+ when dissolved in water, and A base is a substance that forms hydroxide ions OH- when dissolved in water.
Thermal properties of materials refer to the response of materials to changes in their temperature and to the application of heat. As a solid absorbs energy in the form of
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
A biologist puts an initial population of 500 bacteria into a growth plate. The population is expected to double every 4 hours. Which of the following equations gives the expected