Master Physics with Fun Quizzes & Brain Teasers!

what additional measurement is needed to determien the speed of the wave on the spring
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what is the symbol for an ion with six electrons, seven protons, and eight neutrons?
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which method do you think should work best with: shot noise? thermal noise?
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Suppose you take a deep breath on a cold day, bringing in 2.0 L of -10 C air at a pressure of 1.0 atm. The air, once in your lungs, expands at roughly constant pressure as it warms up to 37C.What is the airs change in entropy?
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if the bar is warmed to 31 c , how much force does it exert on each wall?
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a 3.550 l sample of gas is cooled from 87.50c to a temperature at which its volume is 2.150 l. what is this new temperature? assume no change in pressure of the gas.
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in abc, b=51, b=35, and a=36. what are the two possible values for angle a to the nearest tenth of a degree?
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in a pulse waveform, the on-time is 200 micro-seconds and off-time is 400 micro-seconds. calculate the duty cycle of this waveform.
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in a universe dominated by gravity, distant supernovae would be the distance derived from their redshifts using hubble's law
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example is shown at right. turn off pressure and turn on acceleration. what do you notice?
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How much magnification can a 5 diopter lens provide for a normal, relaxed eye?
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is the relationship between the color index of a star and its main sequence lifetime?
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how does narveson incorporate a mathematical ""multiplier"" into his argument?
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how could you confirm the missing mass dissolved in the aqueous layer?
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a. identify three concerns you must analyze when determining whether to report the perceived misconduct. be specific in your answers.
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. what did oersted (or you) realize about the moving charges in an electric current?
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An electric geyser consumes 2.2 units of electrical energy per hour of its use. It is designed to work on the mains voltage of220V.a) What is the power-rating of this device?
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what fraction of the total energy of a sho is kinetic when the displacement is one third the amplitude? express your answer using one significant figure.
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what is the angular momentum vector of the 600 g rotating bar in (figure 1)?
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it takes 15.4 j of energy to move a 13.0- mc charge from one plate of a 17.0- f capacitor to the other.
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the equation of motion of a particle is s = t3 27t, where s is measured in meters and t is in seconds. (assume t 0.)
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How many acres are in a parcel described as the SW of the NE and the SE of the S ? The answer is 120. 640 4 4 = 40 acres; 640 4 2 = 80 acres; 40 ...
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the period of motion of an object-spring system is t = 0.570 s when an object of mass m = 212 g is attached to the spring. (a) find the frequency of motion in hertz.
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a river has a constant current of 3 kph. at what angle to a boat dock should a motorboat maitining a constant speed
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