A superconducting gravity meter can mea- Ag sure changes in gravity of the order 1 x 10 |1 holding the meter, and your 73 kg friend ap- proaches the tree from the other side. How close to you can your friend get before ne meter detects a change in g due to his pres- You are hiding behind a tree ence? The uiass of the earth is 5.98 x 1024 kg and its radius is re. Answer in units of m. You are in a hot air balloon and are using the meter to determine the rate of ascent (presumed constant). What is the smallest change in altitude that results in a detectable change in the gravita- tional field of the earth? Answer in units of mm.

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superconduncting question is part 1

A superconducting gravity meter can mea-
Ag
sure changes in gravity of the order
1 x 10 |1
holding the meter, and your 73 kg friend ap-
proaches the tree from the other side.
How close to you can your friend get before
ne meter detects a change in g due to his pres-
You are hiding behind a tree
ence? The uiass of the earth is 5.98 x 1024 kg
and its radius is re.
Answer in units of m.
You are in a hot air balloon and are using
the meter to determine the rate of ascent
(presumed constant).
What is the smallest change in altitude that
results in a detectable change in the gravita-
tional field of the earth?
Answer in units of mm.
Transcribed Image Text:A superconducting gravity meter can mea- Ag sure changes in gravity of the order 1 x 10 |1 holding the meter, and your 73 kg friend ap- proaches the tree from the other side. How close to you can your friend get before ne meter detects a change in g due to his pres- You are hiding behind a tree ence? The uiass of the earth is 5.98 x 1024 kg and its radius is re. Answer in units of m. You are in a hot air balloon and are using the meter to determine the rate of ascent (presumed constant). What is the smallest change in altitude that results in a detectable change in the gravita- tional field of the earth? Answer in units of mm.
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