Lurking alligators. An alligator waits for prey by floating with only the top of its head exposed, so th way it can adjust the extent of sinking is by controlling the size of its lungs. Another way may be by that then reside in the stomach. The figure shows a highly simplified model (a "rhombohedron gat its head partially exposed.The top head surface has area 0.180 m². If the alligator were to swallow

Lurking alligators. An alligator waits for prey by floating with only the top of its head exposed, so th way it can adjust the extent of sinking is by controlling the size of its lungs. Another way may be by that then reside in the stomach. The figure shows a highly simplified model (a "rhombohedron gat its head partially exposed.The top head surface has area 0.180 m². If the alligator were to swallow

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A Water Tank That Needs Cleaning 11 of 18 I Review I Consta A cylindrical open tank needs cleaning. The tank is filled with water to a height ho = 1.00 meter, so you decide to empty it by letting the water flow steadily from an opening at the side of the tank, located near the bottom. The cross-sectional area of the tank is Aj = 0.785 square meters, while that of the opening is A2 = 0.002 square meters. Part A %3D How much time t/2 does it take to empty half the tank? (Note: A useful antiderivative is 1/2 da = 2x/2) Express your answer numerically in seconds. Take the free-fall acceleration due to gravity to be g = 9.81 meters per second per second. %3D • View Available Hint(s) ? t1/2 = Submit Nex Provide Feedback MacBook Air DII DD 000 esc F9 F10 FL F4 F5 F6 F7 FB F2 F3 F1 * @ %23 %24 3 5 8 9 * 00
When we say that a certain liquid is incompressible, what doesn't change with depth? O Cross-sectional area Cannot be determined; insufficient information. Density Pressure O O
To determine an athlete’s body fat, she is weighed first in air and then again while she’s completely underwater, It is found that she weighs 690 N when weighed in air and 42 N when weighed underwater. What is her average density?
A cube of mass 2.5 kg and 12 cm on a side is at the bottom of a pool of water resting on a scale. a) What does the scale read in N? A massless balloon full of air is attached to the object (assume the air is at atmospheric pressure). b) What is the radius of the balloon such that the scale reads 0 N?
An elephant can swim or walk withits chest several meters underwater while the animal breathes throughits trunk, which remains above the water surface and acts like a snorkel.The elephant’s tissues are at an increased pressure due to the surroundingwater, but the lungs are at atmospheric pressure because theyare connected to the air through the trunk. The figure shows the gaugepressures in an elephant’s lungs and abdomen when the elephant’s chestis submerged to a particular depth in a lake. In this situation, the elephant’sdiaphragm, which separates the lungs from the abdomen, mustsustain the difference in pressure between the lungs and the abdomen.The diaphragm of an elephant is typically 3.0 cm thick and 120 cm indiameter. (See “Why Doesn’t the Elephant Have a Pleural Space?” byJohn B. West, Physiology, Vol. 17:47–50, April 1, 2002.)How does the force the diaphragm experiences due to the difference in pressure between the lungs and abdomen depend on the abdomen’s distance below the…
45) A person weighs 756 N in the air and has a body fat percentage of 28.1%. (a) What is the overall density of this person's body? (b) What is the volume of this person's body? (c) Find the apparent weight of this person when completely submerged in water.
the aqueous humor in a person's eye is exerting a force of 0.469 N on the 1.21 cm^2 area of the cornea a) what pressure is this in mm Hg? b) is this value within the normal range for pressures in the eye? Yes or no
A boat with a flat bottom and it's cargo weight 4285N. The area of the boat's bottom is 7m2. How far below the surface of the water is the boat's bottom? The surface of the lake? Use g=9.8m/s2
A volunteer weighing 750 N sits on a bed of 150 closely spaced nails. Each nail has a cross-sectional area of 0.00025 m2. Assuming that the volunteer occupies the entire space of 1nail?, how much pressure does the nail exert on him?
A solid, square of floating ice measuring 5 m on a side and 0.33 meter thick floats partially submerged in water. Determine the number of penguins that can stand on the ice block without any of them getting their flippers wet? (i.e. such that the top surface of the ice block floats at water level)? Assume that the mass of each penguin is 10 kg. Round your answer to the nearest whole number of penguins. Assume the density of saltwater is 1030 kg/m3 and the density of ice is 980 kg/m^3
A spherical shell made of a material with a densityof 1600 kg/m3 is placed in water. If the inner and outer radii of the shell are R1 = 5 cm, R2 = 6 cm, determine the percentageof the shell’s total volume that would be submerged.
What is the value of pressure inside the bubble of radius 1cm, if the bubble is in water at a depth (H) of 1m? Assume atmospheric pressure to be 1atm, surface tension = 0.075N/m & density of water = 1000kg/m3. a) 110015 Pa b) 109985 Pa c) 26 atm d) 4 atm