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simar

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Water is lifted from a well of depth 50m. If mass of water is 20kg and that of the rope is 0.2kg per metre the amount of work
1. 2 answers
2. 1,347 views
A galaxy with an apparent magnitude in the V band (λc ~ 5550 angstroms, width δλ ~ 800 angstroms) of mV = 22.5 mag is
1. 3 answers
2. 595 views
We observe a galaxy at z = 1, and a quasar at z = 2. What is the redshift of the quasar as observed from that galaxy? Enter a
1. 1 answer
2. 495 views
A right circular cone is made from of a radius of 5 cm, a central angle of 216 degrees, what is the volume of the cone in cubic
1. 1 answer
2. 613 views

Entropy decreases.becoz 1more oxygen atom is added into O2 gas so compactly arrange and randomness decreases.
passive voice; The paper makes the boat. that is the correct form
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