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explain thermal physics and quanmtum mechanicsthermal physics in which one studies the nature of heat and the changes that the addition of heat
classical mechanics and electromagnetismclassical mechanics which study with the motion of bodies under the action of forces this is often known as
explain thew laws of physicsit is thought that the laws of physics do not change from place to place this is why experiments carried out in different
what is phyiscsphysics is a science science works according to the scientific method the scientific method accepts only reason logic and experimental
why water is a essential nutrient for lifein this unit we learnt that water in spite of being ignored is an essential nutrient required for life
electrical equipment in an office takes a current of 13a from a 240v supply estimate the cost per week of electricity if the equipment is used for 30
what is the meaning of oedemain some pathological conditions the body is in a positive water balance that is the intake of fluids is greater than the
an electric kettle has a resistance of30 what current will ow when it is connected to a 240v supply find also the power rating of the kettle a
determine the symptoms of dehydrationthe symptoms of dehydration are thirst loss of appetite decreased urination impaired physical performance
explain about the dehydrationdehydration is defined as the excessive loss of body water it may occur because of inadequate intake or abnormal loss of
a 100v battery is linked across a resistor and causes a current of 5ma to owverify the resistance of the resistor if the voltage is now decreased
450j of energy are changed into heat in 1 minutewhat power is dissipateda current of 10a ows by a conductor and 10wis dissipatedwhat pd exists across
define the disturbances in fluid balancethe correct functioning of cells and tissues depends on appropriate concentrations of nutrients so any
a force of 25kn is needed to lift a load how much work is done if the load is lifted by 500cman electromagnet exerts a force of 12n and moves a soft
define the requirements for waterthe body has no provision for water storage therefore the amount of water lost every 24 hours must be replaced to
how thirst and satiety influence water intakethirst and satiety influence water intake apparently in response to changes sensed by the mouth
explain regulation of water balance for cells in the kidneyscells in the kidneys respond to low blood pressure by releasing an enzyme called renin
define regulation of water balance - hormonal control of fluid balancehormonal control of fluid balance when water intake is insufficient or water
define regulation of water balance for the kidneysthe kidneys are highly efficient conservators of body water although the kidneys filter 180 l of
define regulation of water balance - for the digestive processfor the digestive process alone the estimated daily volume of fluid that enters and
q write an expression for interest rate parity under the condition of imperfect asset substitutabilityanswer r r ee - ee a where r denotes the
q assume an economy is in a liquidity trapa write an equation expressing interest rate parity under a fixed exchange rate regimeanswer liquidity trap
a what force is needed to give amass of 20kg an acceleration of 30ms2b find the accelerating force when a car having a mass of 17mg enhances its
define regulation of water balancethe input of water as well as its loss can be highly variable due to individual habits and environmental factors in
define water losses by visible perspirationthe water losses by visible perspiration are highly variable the amount could be as high as 4l in hot