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Planet x is 265 earth orbital radii from the sun, what is the period of revolution in earth year?
If I were on Mars could I see the following
Saturn in the sky at midnight?
TiO lines in the sun’s spectrum?
sunspots?
same Balmer lines of hydrogen as on Earth?
sun is not in the sky and does not rise for weeks if It’s midwinter in the south of Mars?
pictures as as good as those from the Hubble Space Telescope?
Ganymede (the largest moon of Jupiter) appear go around Jupiter?
sees Phobos in full phase near the horizon at midnight?
the black body spectrum seen from the sun has a temperature of between 3000 and 4000 degrees Kelvin?
What are the similarities between the movement of a planet and a comet?
Explain the 2 statements: with one exception, the winter day sky is the same as the summer night sky, and the summer day sky is the same as the winter night sky.
The Solar System is about
Answer
a.6000 years old.
b.
15 million years old.
c.
400 million years old.
d.
4.5 billion years old.
e.
200 billion years old
why is the sun not the major factor in the tides
1) a seconds pendulum is taken to the moon where the value of g is a sixth of the value on earth. the time period of the pendulum will be------

a) 1sec b) 2 sec c) 5sec d) none of these

2)if a force of 1 newton acts on a mass of 500 gms, acceleration will be?
define a galaxy
If an object is traveling at 37 m/s, how far will it travel in 10500 sec? Answer in km.
Eleven neutrinos were detected by the Kamioka water Cerenkov detector in Japan, following the explosion of supernova SN1987a. The Kamioka detector had a fiducial mass of 1000 metric tonnes. How many human beings, therefore, actually 'saw' the explosion of SN1987a

Hint - concider the structure of the human eye.
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