What causes the apparent movement of the sun north and south of true east through the year?
a...
Physics, 24.09.2019 19:00 naynay4evr
What causes the apparent movement of the sun north and south of true east through the year?
a. the movement of the sun through the constellations
b. the tilt of earths axis
c. earths rotation eastward
d. earths elliptical orbit
Answers: 3
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You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?
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Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.
Answers: 2
Physics, 22.06.2019 23:40
Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)
Answers: 1
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