Class Management Help HW 11 Begin Date: 10/23/2017 11:00:00 AM -- Due Date: 11/6
ID: 1775480 • Letter: C
Question
Class Management Help HW 11 Begin Date: 10/23/2017 11:00:00 AM -- Due Date: 11/6/2017 11:00:00 AM End Date: 11/6/2017 11:00:00 AM (10%) Problem 10: After a party the host pours the remnants of several bottles of wine into a Jug. He then inserts a cork with a 1.95-cm diameter into the jug, placing it in direct contact with the wine. He is amazed when he pounds the cork into place that the bottom of the jug, with a 14-cm diameter, breaks away. Randomized Variables d1= 195 cm d2 = 14 cm F = 125 N Find the force the host causes to be exerted on the bottom by pounding the cork with a 125-N force. Ignore the force caused by the weight of the wine. Grade Summar Fbottom Deductions Potential 5% 95% sinO | cos() | | (1) 171819 Submissions tan() | cotan asinO acos(0 atanacotan)sinh) Attempts remaining: 4 (5% per attempt) detailed view 23 5% tanh cotanh) 1 END °Degrees Radians DELCLEAR Submit Hint I give up! Hints: 1%_deduction per hint. Hints remaining: 1 Feedback: 1% deduction per feedback.Explanation / Answer
r1 = 1.95/2 = 0.975 cm
F1 = 125 N
as the pressure is same on both
F1/(pi * r1^2) = F2/(pi * r2^2)
125/(pi * 1.95^2) = F2/(pi * 14^2)
F2 = 6443 N
the force at the bottom is 6443 N