Physics, 08.03.2021 09:30, alyssashae1818
7. Sarah pulls her sister in a wagon (combined mass of 50 kg) a horizontal distance of 25 m. If she pulls with a force of 40 N at an angle of 36 degrees with the horizontal distance, how much work does she do. If she starts from rest, what is her power generated
Answers: 3
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Why is no-till farming more sustainable than many traditional methods of farming
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Physics, 23.06.2019 03:30, jazzyneen7190
Arock displaces 1.65 l of water. the volume of the rock is: a: 1,650 cm³ b: 165.0 cm³ c: 16.50 cm³ d: 0.165 cm³
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Physics, 23.06.2019 13:30, bmia7757
Acarpenter is driving a 15.0-g steel nail into a board. his 1.00-kg hammer is moving at 8.50 m/s when it strikes the nail. half of the kinetic energy of the hammer is transformed into heat in the nail and does not flow out of the nail. what is the increase in temperature of the nail after the three blows that the carpenter needs to drive the nail in completely? the specific heat of steel is 448 j/kg ∙ k. a) 2.7 k b) 1.8 k c) 7.7 k d) 8.1 k e) 3.6 k
Answers: 1
7. Sarah pulls her sister in a wagon (combined mass of 50 kg) a horizontal distance of 25 m. If she...
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