Arocket is fired straight upward, starting from rest with an acceleration of 25.0 m/s^2. it runs out of fuel at the end of 4.00 s and continues to coast upward, reaching a maximum height before falling back to earth. (a) find the rocket height and velocity when it runs out of fuel. (b) find the maximum height the rocket reaches. (c) find the velocity the instant before the rocket crashes into the ground. (d) find the total elapsed time from launch to ground impact.
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Physics, 22.06.2019 07:00
Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.
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Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.
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Physics, 22.06.2019 14:30
Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules
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Physics, 22.06.2019 22:10
Astep up transformer has 250 turns on its primary and 500 turns on it secondary. when the primary is connected to a 200 v and the secondary is connected to a floodlight that draws 5a, what is the power output? show all of your work.
Answers: 1
Arocket is fired straight upward, starting from rest with an acceleration of 25.0 m/s^2. it runs out...
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