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q explain the steps to the scientific notationanswer-to write in scientific notation you must first move the decimal point of the number to where the
q how is radiation release from the bodyanswer-the body radiates energy by thermal conduction through the skin to the clothes air and so on around
q does sunlight reflected off a mirror raise the temperature of the sun-raysanswer-a standard planar mirror will not raise the energy contained in
q when a radar gun utter the pitch is 90 miles per hour at what point in the balls travel to home plate is the radar gun measuring the velocity
q how several pounds does one gallon of water weighanswer-one wine measure or else us gallon of water weighs 834 pounds an imposing gallon is ten
q what are the wave frontsanswer-physics a wave front is an fantasy surface joining all points in space that are reached at the same instant by a
q measure of elapsed period using the si unitanswer-1 this is the question that each true scientist dreads to be asked especially in a public setting
q how does the height and air pressure affect the boiling point of wateranswer-the only factor that finding the boiling point of water at any
q what instrument is utilized to measure volumeanswer-liquid volume is measured with graduated cylinders beakers measuring cups spoons and the like
q what is the newton meteranswer-a unit of energy is as well known as a joule when a force of 1 newton is used on an object for a distance of 1 meter
q how greatly does automotive oil weighanswer-as a rough guide engine oil typically weighs about 087 kglitter or about 72 pounds per us gallon
q what is the proper formula utilized to calculate accelerationanswer-there are some the most famous is a fm where f is the net force applied to a
q what are the affect does electricity have on the soilanswer-electrical current and ions are able to cause certain molecules and moisture to adhere
q what is a neutral buoyancyanswer-buoyancy is the net upward force knowledgeable by an object submersed in a fluid pascals principle utters that
q what is meant by doping the process of addition of extremely small amount of impurity into an intrinsic semiconductor is called
q a transistor is connected in ce configuration the voltage drop across the load resistance rc 3 k is 6 v find the base current the current gain
q collector current ic20 ma and base current ib 50 a find current gain beta of a transistorbeta i c i b 20 x 10-3 50 x 10-6
q when there is no feedback the gain of the amplifier is 100 if 5 of the output voltage is fed back into the input through a negative network find
q the voltage increase of an amplifier without feedback is 100 if negative feedback is functioned with feedback fraction 01 compute the voltage gain
q when the negative feedback is practical to an amplifier of gain 50 the gain falls to 25 compute the feedback ratioaf a 1 abeta25 50 1 50
q the gain of an amplifier without feedback is 100 and the gain of an amplifier with feedback is 200 calculate the feedback fractionsolution voltage
q what is an intrinsic semiconductor give any two examples a a semiconductor which is pure as well as contains no impurity is known as an intrinsic
q the radioactive isotope 84pa214 undergoes a successive disintegration of two alpha decays and two beta decays find the atomic number and the mass
q the half life period of 84po218 is 3 minutes what percentage of the sample has decayed in 15 minutes 1 hlp 3 minutesin 15 minutes there are 3
q what are leptons give examples leptons leptons are lighter particles having mass equal to or less than about 207 times the mass of an electron