The giant Pacific octopus (Enteroctopus dofleini) has a typical mass of 15 kg and can propel itself
Question:
The giant Pacific octopus (Enteroctopus dofleini) has a typical mass of 15 kg and can propel itself by means of a water jet when frightened.
(a) If it expels water at a mass rate of 2.4 kg/s and with a speed of 27 m/s, what thrust can it generate?
(b) If the seawater exerts a resistive force of 18 N on the octopus, what acceleration can it achieve?
(c) If the octopus maintains its jet propulsion for 3.0 s, what maximum velocity can it attain?
Step by Step Answer:
An octopus expels water in a jet in order to propel itself at high speed Use Equa...View the full answer
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
Students also viewed these Mechanics questions
-
The rectangular plate shown has a mass of 15 kg and is held in the position shown by hinges A and B and cable EF. Assuming that the hinge at B does not exert any axial thrust, determine (a) The...
-
Solve Prob. 4.122 assuming that cable EF is replaced by a cable attached at points E and H. Problem 4.122: The rectangular plate shown has a mass of 15 kg and is held in the position shown by hinges...
-
The rectangular plate shown has a mass of 15 kg and is held in the position shown by hinges A and B and cable EF. Assuming that the hinge at B does not exert any axial thrust, determine (a) The...
-
A home buyer bought a house for $245,000. The buyer paid 20 percent down but decided to finance closing costs of 3 percent of the mortgage amount. If the borrower took out a 30-year fixed-rate...
-
Net Present Value Suppose a project has conventional cash flows and a positive we NPV. What do you know about its payback, its discounted payback, its profitability index, its IRR? Explain.
-
In Problems 15-18, use Hamilton's plan to apportion the new seats to the existing states. Then increase the number of seats by one and decide whether the Ala bama paradox occurs. Assume that the...
-
Define the auditor's 'desired level of assurance'. Explain how this relates to the auditor's desired level of audit risk.
-
Penny Pincher Company has a defined benefit pension plan for its employees. The following pension data are available at year- end ( in millions): Accumulated benefit obligation $ 142 Projected...
-
Weaver Corporation had the following stock issued and outstanding at January 1, Year 1: 1. 145,000 shares of $11 par common stock. 2. 4,500 shares of $150 par, 8 percent, noncumulative preferred...
-
At the instant shown, the velocity of collar A is 0.4 m/s to the right and the velocity of collar B is 1 m/s to the left. Determine (a) The angular velocity of bar AD, (b) The angular velocity of bar...
-
A 0.454-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 25.0 N/m. The block rests on a frictionless surface. A 0.0500-kg wad of putty is...
-
Object 1 has a mass m 1 and a velocity v(vector) 1 = (2.80 m/s)x. Object 2 has a mass m 2 and a velocity v(vector) 2 = (3.10 m/s)y. The total momentum of these two objects has a magnitude of 17.6 kg ...
-
A 450.0-mL sample of a 0.257-M solution of silver nitrate is mixed with 400.0 mL of 0.200 M calcium chloride. What is the concentration of Cl2 in solution after the reaction is complete?
-
Interpersonal Communication: Conversational Skills Pair off with another student and initiate a conversation in which one of you will express concerns about the way one of your courses is progressing...
-
Collaboration: Participating in Meetings With a classmate, attend a local community or campus meeting where you can observe a group discussion, vote, or take other group action. During the meeting,...
-
Communication Etiquette: Etiquette in the Workplace; Participating in Meetings You have been asked by the chairperson of a group to observe a meeting she runs regularly. She feels that it is...
-
Turn to the Handbook of Grammar, Mechanics, and Usage at the end of this book and review all of Section 1.1 (Nouns). Then look at the following 10 items and select the preferred choice within each...
-
Planning: Assessing Audience Needs, Chapter 3 Assume that you are running for the position of the president of a local sports club, and there is another contender. Although you have administrative...
-
Presented below is information from the statements of owner?s equity for Kerkan Consulting for the first three years of operation. Determine the missing amounts: 2019 2020 2021 J. Kerkan, capital,...
-
The age-old saying for investing is "buy low and sell high," but this is easier said than done. Investors who panic about falling prices sell their investments, which in turn lowers the price and...
-
Equations and are approximations of the magnitude of the electric field of an electric dipole, at points along the dipole axis. Consider a point P on that axis at distance z = 5.00d from the dipole...
-
Figure shows an electric dipole. What are the (a) Magnitude and (b) Direction (relative to the positive direction of the x axis) of the dipole's electric field at point P, located at distance r >>d?...
-
The electric field of an electric dipole along the dipole axis is approximated by Eqs 22-8 and 22-9. If a binomial expansion is made of Eq. 22-7, what is the next term in the expression for the...
-
Provide a numerical example to illustrate how carry trade works?
-
If there are 3 6 0 million people living in the U . S , and 2 7 0 million are eligible workers while 1 5 0 million are in the labor force with 3 . 6 % unemployed, what is the number of unemployed...
-
Refer to the information provided in Figure 8.8 bele to answer the questis that MC Coper 12 ATC P-MR 200 700 1000 1400 Bushels of soybeans 283 Figure 8.8 26) Refer to Figure 8.8. This farmer's...
Study smarter with the SolutionInn App