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Physics, 21.06.2019 20:00
Which of the following represents an upright image? a. -do b. +m c. -m d. +do
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Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative
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The molecular weight of oxygen gas (o2) is 32 while that of hydrogen gas (h2) is 2. prove that under same physical conditions, the velocity of sound in hydrogen is four times that in oxygen
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Physics, 23.06.2019 22:40
What is one action a person can take to ensure ability to participate in physical activity throughout life?
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A= (8 m, 116o) y B= (15 m, 26o); Calcule B-A...
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