A3.0kg block slides down an incline that makes an angle θ = 30◦ with the horizontal direction. the coefficient of kinetic friction between the block and the incline is µk = 0.3 if the incline is 3m long, (i) determine the work done by friction. (ii) determine the work done by the normal force. (iii) determine the work done by gravity. (iv) what is the total work done on the block? (v) if the block is given an
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Physics, 21.06.2019 22:50
If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)
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Physics, 22.06.2019 10:10
In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?
Answers: 1
Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
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Physics, 22.06.2019 16:30
In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic
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A3.0kg block slides down an incline that makes an angle θ = 30◦ with the horizontal direction. the c...
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