Physics, 26.11.2019 03:31 Kaytlynshue2443
Regrine falcons frequently grab prey birds from the air. sometimes they strike at high enough speeds that the force of the impact disables prey birds. a 480 g peregrine falcon high in the sky spies a 240 g pigeon some distance below. the falcon slows to a near stop, then goes into a dive--called a stoop--and picks up speed as she falls. the falcon reaches a vertical speed of 45 m/s before striking the pigeon, which we can assume is stationary. the falcon strikes the pigeon and grabs it in her talons. the collision between the birds lasts 0.015 s.
Answers: 2
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What are two different ways you could find the value of a? explain these methods.
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Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow
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Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?
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Physics, 22.06.2019 23:40
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
Regrine falcons frequently grab prey birds from the air. sometimes they strike at high enough speeds...
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