Physics, 14.09.2019 09:20 rachel63892
Abullet with momentum of 2.8 kg·m/s [e] is traveling at a speed of 187 m/s. the mass of the bullet is: a) 67 g b) 15 g c) 0.067 g d) 0.015 g
Answers: 3
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Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?
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Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.
Answers: 3
Abullet with momentum of 2.8 kg·m/s [e] is traveling at a speed of 187 m/s. the mass of the bullet i...
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