Question

You are a treasure hunter and ﬁnd an ancient Egyptian shipwreck
under the Mediterranean Sea. The ship is ﬁlled with silver bars (at
points in Egyptian history silver was more valuable than gold!).
The shipwreck is located 1500 m below the water’s surface. Sea
water has a density of about 1020 kg/m3. Silver has a density of
10500 kg/m3. The Young’s modulus of silver is 8.3 x 1010 N/m2. The
shear modulus of silver is 3.0 x 1010 N/m2. The bulk modulus of
silver is 1.0 x 1011 N/m2. Assume the atmospheric pressure is 1 atm
or 1.013 x 105 Pa.

(a) What is the absolute pressure at the shipwreck? (b) Assume the
bars have a mass of 3.11 kg each. What is the volume of a bar like
this? (c) You have an open-water elevator to bring the bars back up
to your excavation ship. The maximum force that the elevator can
exert on its load is 1500 N. How many silver bars can you bring up
at a time? (d) How much does the volume of one silver bar change
when you bring it to the surface?

Answer #1

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 15 minutes ago

asked 26 minutes ago

asked 29 minutes ago

asked 37 minutes ago

asked 41 minutes ago

asked 59 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago