Astudent wants to determine the coefficients of static fric- tion and kinetic friction between a box and a plank. she places the box on the plank and gradually raises one end of the plank. when the angle of inclination with the horizontal reaches the box starts to slip, and it then slides 2.5 m down the plank in 4.0 s at constant acceleration. what are (a) the coefficient of static friction and (b) the coefficient of kinetic friction between the box andtheplank?
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Physics, 22.06.2019 10:10
Apair of 10μf capacitors in a high-power laser are charged to 1.7 kv.a. what charge is stored in each capacitor? b. how much energy is stored in each capacitor?
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Astudent wants to determine the coefficients of static fric- tion and kinetic friction between a box...
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