Asmall box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 27 ∘ above the horizontal. the coefficients of static and kinetic friction between the box and wall are 0.40 and 0.30, respectively. the box slides down unless the applied force has magnitude 18 n. what is the mass of the box in kilograms?
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According to the tide table below what time of day will the highest tide occur?
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Physics, 22.06.2019 10:00
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
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Coal contains energy. a. light b. kinetic c. chemical d. mechanical
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Consider a production line with five stations. station 1 can produce a unit in 9 minutes. station 2 can produce a unit in 10 minutes. station 3 has two identical machines, each of which can process a unit in 12 minutes (each unit only needs to be processed on one of the two machines. station 4 can produce a unit in 5 minutes. station 5 can produce a unit in 8 minutes. which station is the bottleneck station?
Answers: 2
Asmall box is held in place against a rough vertical wall by someone pushing on it with a force dire...
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