The radius of the moon is roughly 2000km. The acceleration of gravity – McqOptions

MCQOPTIONS

1.	The radius of the moon is roughly 2000km. The acceleration of gravity at the surface of the moon is about \(\frac{g}{6}\), where g is the acceleration of gravity at the surface of the earth. What is the velocity of escape for the moon?(Take g=10ms-2)
A.	2.58 kms-1
B.	4.58 kms-1
C.	6.28 kms-1
D.	12.28 kms-1
Answer» B. 4.58 kms-1

Discussion

No Comment Found

Related MCQs

The radius of the moon is roughly 2000km. The acceleration of gravity at the surface of the moon is about \(\frac{g}{6}\), where g is the acceleration of gravity at the surface of the earth. What is the velocity of escape for the moon?(Take g=10ms-2)
A bottle of mineral water at a room temperature of 72℉ is kept in a refrigerator where the temperature is 44℉.After half an hour water cooled to 61℉.What is the temperature of the body in another half an hour?(Take log \(\frac{28}{17}\) = 0.498, e-0.99=0.37)
A body in air at 25℃ cools from 100℃ to 75℃ in 1 minute. What is the temperature of the body at the end of 3 minutes? (Take log(1.5)=0.4)
According to Newton’s law of cooling “The change of temperature of a body is proportional to the difference between the temperature of a body and that of the surrounding medium”. If t1℃ is the initial temperature of the body and t2℃ is the constant temperature of the medium, T℃ be the temperature of the body at any time t then find the expression for T℃ as a function of t1℃, t2℃ and time t.