Diámetro de la Luna. Un día de cielo despejado y Luna llena, temprano en la mañana sostén una regla graduada en milímetros con el brazo extendido y mide el diámetro aparente de la Luna; mide también la distancia de la regla al ojo. a) ¿Cuál es el ángulo bajo el cual se ve el diámetro de la Luna desde la Tierra (diámetro angular de la Luna)? b) Estima el diámetro de la Luna considerando que está a 3.8 x 10 8 m de la Tierra.
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Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?
Answers: 3
Diámetro de la Luna. Un día de cielo despejado y Luna llena, temprano en la mañana sostén una regla...
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