Is smoke a matter and why? Smoke is a collection of tiny unburnt particles – very small carbon particles and tiny droplets of tar. Smoke is a collection of tiny solid, liquid and gas particles. In complete combustion, everything is burned, producing just water and carbon dioxide. When incomplete combustion occurs, not everything is burned. […]
What is the relation between power and frequency?
What is the relation between power and frequency? The relationship between power and frequency is inversely proportional to each other . The power demand reduces in the load so that the frequency increases in the transient period but at steady state condition. Frequency is number of waves that pass a fixed place in a given […]
What is the advantage of acceleration?
What is the advantage of acceleration? ➢ Accelerated students experienced higher levels of academic achievement in both high school and in college courses than non- accelerated students. Accelerated students enjoyed higher high school GPAs than non-accelerated students. How do you accelerate grades? One of the best-known forms of academic acceleration, grade skipping involves moving the […]
How many babies are born each year in Fiji?
How many babies are born each year in Fiji? The crude birth rate indicates the number of live births occurring during the year, per 1,000 population estimated at midyear….Fiji: Birth rate from 2008 to 2018 (per 1,000 inhabitants) Birth rate per thousand population 2017 21.56 2016 21.8 2015 21.98 2014 22.11 What is the death […]
Who predicted properties of undiscovered elements?
Who predicted properties of undiscovered elements? Mendeleev What are elements that have some properties of metals and some properties of nonmetals called? Metalloids may act either like metals or nonmetals in chemical reactions. Most metalloids have some physical properties of metals and some physical properties of nonmetals. They fall between metals and nonmetals in their […]
Why is force inversely proportional to square of distance?
Why is force inversely proportional to square of distance? This is because the force acts uniformly in all directions from the point source and conserves the energy over the entire surface surrounding the point object. Since the surface is a sphere the area of the sphere is given as 4πr2. What is the inverse square […]
Which of the following bulb will have high resistance?
Which of the following bulb will have high resistance? By comparing R1 and R2 first bulb, i.e., bulb with rating 60W−220V offers more resistance. Does wattage affect resistance? Resistors come in a variety of different ratings based on wattage. As a rule, lower wattage resistors are smaller than higher wattage resistors. What is the resistance […]
How do you classify a metal?
How do you classify a metal? The elements can be classified as metals, nonmetals, or metalloids. Metals are good conductors of heat and electricity, and are malleable (they can be hammered into sheets) and ductile (they can be drawn into wire). Is Silicon harmful to humans? Silicon crystalline irritates the skin and eyes on contact. […]
Is dentist mirror real or virtual?
Is dentist mirror real or virtual? The dentist uses a CONCAVE MIRROR to observe a magnified image of the tooth. As we know, a concave mirror forms a virtual, erect and magnified image… How do doctors use concave mirror? If the object is placed between the focus and pole of a concave mirror, it provides […]
How do you solve for change in velocity?
How do you solve for change in velocity? Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), […]