a.
Physics, 29.12.2019 15:31 parmer6527p810bw
According to kepler, what do all bodies in orbit around another have in common?
a.
all follow a circular path around a central body, which is the focal point of the circle.
b.
all follow a path tangent to a circle around a central body or focal point.
c.
all follow a spherical path that has a focus on each of two equidistant axes.
d.
all follow an elliptical path that has two foci, rather than a circular path.
Answers: 2
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Why is the basic problem of economic,scarcity, a universal problem?
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Physics, 23.06.2019 16:00
Two point charges lie on the x axis. a charge of + 2.30 pc is at the origin, and a charge of − 4.50 pc is at x=−11.0cm. what third charge should be placed at x=+26cm so that the total electric field at x=+13.0cm is zero? express your answer to three significant figures and include appropriate units.
Answers: 3
Physics, 23.06.2019 22:50
2. how much of the world's electricity currently comes from coal? select one: a. 25% b. 40%. гоо оо. с. 50% d. 75%
Answers: 1
According to kepler, what do all bodies in orbit around another have in common?
a.
a.
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