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q why does a glass filled with water smash when you run your finger along the rim of the glassanswer-a portion of crystal stemware has a natural or
q illustrates the evidence is there supporting the big bang theoryanswer-in brief the universe is expanding each of the galaxies we have observed
q illustrates the branches of physicsanswer-the basic branches of physics are classical mechanics electromagnetism including thermodynamics optics
q what is the dissimilarity between the atomic theory and the kinetic theoryanswer-atomic theory is about structure of an atom that is its
q describe the parallel forceanswer-parallel forces are two or else more forces which perform in parallel the forces dont have to be in the similar
q how does the laser printer worksanswer-when a text or else image is entered into the cpu it produces a series of varying voltages this manages a
q why does heat makes matter to expandanswer-water contracts as it cools similar to all other liquids until it reaches a temperature of about 4
q describe the isotopesanswer-an atom of an element that has a diverse number of neutrons in its nucleus to other atoms of the
q explain the magnetize of metalanswer-you can rub a magnet alongside the metal in one direction for a bunch of times the more the better and that
q illustrate the newton s laws of motionanswer-1 a body at rest will stay at rest and one in motion will remain in motion until and unless acted upon
q will a dc motor really produce voltage if it is spun in reverseanswer-it will produce voltage if you spin it forwards too the merely difference
q why do you not collapse in the pressure created by the atmosphereanswer-if the outward pressure inside your body werent equal to the pressure
q what is the dissimilarity between free electron theory and band theory of solidsanswer-the free electron theorythis theory notifies that metals
q show the categorization of alloysalloys are able to be classified by the number of their constituents an alloy with two components is described as
q explain an alloyanswer-an alloy is a homogeneous hybrid of two or else more elements at least one of which is a metal and where the resulting
q explain densityanswer-density is a physical characteristic also is a measure of mass per unit of volume of a material or substance it is a
q explain the law of machinesanswer-machines which are utilized to lift a load are governed by the law of machines which states that the effort to be
q what would occur if a disk one light second in circumference were to spin at 60 rpmanswer-60 revolutions for each minute is one revolution per
q is air travel time the similar whether or not the plane is flying with or against the rotation of the earthanswer-all air travel gets the earths
for the same leg strength jumping technique weight affects how far one can jumpacceleration force masswith more mass you cant accelerate yourself
how can light be classify in simplest formanswer-the common description of light visible is electromagnetic radiation visible to the human eye it is
q how greatly does sea salt weigh per cubic footanswer-sodium chloride nacl weighs 72
q what is the neutronanswer-a neutron is a subatomic particle its one of the building blocks of the atom it has a mass of in relation to 1675 x 10-27
q define specific gravityanswer-specific gravity sg is a unit fewer quantities that gives the scientist or engineers an idea of how dense a substance
q give one merit of a scanning electron microscope over a transmission electron microscopeanswer-the sem has turn into more popular than the tem as