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23 Nov 2019

A certain white dwarf star was once an average star like our Sun.But now it is in the last stage of its evolution and is the size ofour Moon but has the mass of our Sun.
A)Estimate the gravity on the surface of this star?
B)How much would a 69- person weigh on this star?
C)What would be the speed of a baseball dropped from a height of3.0 when it hit the surface?

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Jamar Ferry
Jamar FerryLv2
9 Jan 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A certain white dwarf star was once an average star like ourSun. But now it is in the last stage of its evolution and is thesize of our Moon but has the mass of our Sun.
Estimate gravity on the surface on this star.
=4.38×107 m/s2
Correct
How much would a 69-kg person weigh on thisstar?
Express your answer using twosignificant figures.
w =3.0×109 N
Correct
Please help with this part
What would be the speed of a baseball droppedfrom a height of 3.0 m when it hit the surface?
I got 3.12 and it is incorrect my answer issuppose to be in m/s. Please solve all the way through.

13.25 · Deimos, a moon of Mars, is about 12 km in diameter with mass 1.5 X 10 kg. Suppose you are stranded alone on Deimos and want to play a one-person game of baseball. You would be the pitcher, and you would be the batter! (a) With what speed would you have to throw a baseball so that it would go into a circular orbit just above the surface and return to you so you could hit it? Do you think you could actually throw it at this speed? (b) How long (in hours) after throwing the ball should you be ready to hit it? Would this be an action-packed baseball game?

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