What is the surface tension of a small droplet of water 0.3mm in diameter which is...
What is the surface tension of a small droplet of water 0.3mm in diameter which is in contact with air if the pressure within the droplet is 561 Pa?
a.) 0.022 N/m
b.) 0.032 N/m
c.) 0.042 N/m
d.) 0.052 N/m
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What is the surface tension of a small droplet of water 0.3mm in
diameter which is...
Problem 4: It is possible control electronically the internal pressure within a liquid droplet, thereby affecting...
Problem 4: It is possible control electronically the internal pressure within a liquid droplet, thereby affecting the contact angle of the droplet. This method is used in camera phones to create liquid lenses. Changing the pressure creates a variable focal length. Let's consider a spherical cap that has a base diameter of 3 mm. The pressure in the droplet is set to 205 Pa and the contact angle at the surface is 30°. What is the surface tension that holds...
An archer fish launches a droplet of water from the surface of a small lake at...
An archer fish launches a droplet of water from the surface of a small lake at an angle of 60 above the horizontal. He is aiming at a juicy spider sitting on a leaf 46 cm to the east and on a branch 27 cm above the water surface. The fish is trying to knock the spider into the water so that the fish can eat the spider (a) What must the speed of the water droplet be for the...
Calculate the total reversible thermodynamic work required to produce a spray of water of droplet diameter...
Calculate the total reversible thermodynamic work required to produce a spray of water of droplet diameter 2000 nm from 40 liters of water at 25C. Take the surface tension of water as 72 mN m size? How many water drops would be produced, theoretically if the droplets are at all equal size? this is all the information given in the text book.
3. Surface tension of a water strider For an animal the size of a human, surface...
3. Surface tension of a water strider For an animal the size of a human, surface tension seems to be a rather small and insignificant force (though it plays an important if unnoticed role in our breathing). But as animals get smaller, surface tension gets increasingly significant. (The weight of the animal goes down with the cube of the size while the surface tension only decreases linearly.) For animals like the basilisk lizard and the jacana (bird), they appear to...
3. Surface tension of a water strider For an animal the size of a human, surface...
3. Surface tension of a water strider For an animal the size of a human, surface tension seems to be a rather small and insignificant force (though it plays an important if unnoticed role in our breathing). But as animals get smaller, surface tension gets increasingly significant. (The weight of the animal goes down with the cube of the size while the surface tension only decreases linearly.) For animals like the basilisk lizard and the jacana (bird), they appear to...
3. Surface tension of a water strider For an animal the size of a human, surface...
3. Surface tension of a water strider For an animal the size of a human, surface tension seems to be a rather small and insignificant force (though it plays an important if unnoticed role in our breathing). But as animals get smaller, surface tension gets increasingly significant. (The weight of the animal goes down with the cube of the size while the surface tension only decreases linearly.) For animals like the basilisk lizard and the jacana (bird), they appear to...
3. Surface tension of a water strider For an animal the size of a human, surface...
3. Surface tension of a water strider For an animal the size of a human, surface tension seems to be a rather small and insignificant force (though it plays an important if unnoticed role in our breathing). But as animals get smaller, surface tension gets increasingly significant. (The weight of the animal goes down with the cube of the size while the surface tension only decreases linearly.) For animals like the basilisk lizard and the jacana (bird), they appear to...
Someone help me with question(b) and (c),thx!! (40 %) For a 1-mm-diameter n-hexane droplet burning in air at atmospheric...
Someone help me with
question(b) and (c),thx!!
(40 %) For a 1-mm-diameter n-hexane droplet burning in air at atmospheric pressure. Assume no heat is conducted into the interior of the liquid droplet and 4. that the droplet temperature is equal to the boiling point. The ambient air is at 298 K. (a) Estimate the mass burning rate of the droplet (b) Calculate the ratio of the flame radius to droplet radius (c) Calculate the flame temperature (d) Plot the temperature...
4. A water bug is suspended on the surface of a pond by surface tension. The...
4. A water bug is suspended on the surface of a pond by surface tension. The bug has six legs, each in contact with the water over 5 mm. what is the maximum mass of the bug to avoid sinking? Given σ= 0.073 N/m 5 mm 5 mm
Determine the excess pressure inside a 5-mm-diameter soap bubble floating in air, given the surface tension...
Determine the excess pressure inside a 5-mm-diameter soap bubble floating in air, given the surface tension of the soap solution is 0.065 N/m.
Problem 4: It is possible control electronically the internal pressure within a liquid droplet, thereby affecting the contact angle of the droplet. This method is used in camera phones to create liquid lenses. Changing the pressure creates a variable focal length. Let's consider a spherical cap that has a base diameter of 3 mm. The pressure in the droplet is set to 205 Pa and the contact angle at the surface is 30°. What is the surface tension that holds...
An archer fish launches a droplet of water from the surface of a small lake at an angle of 60 above the horizontal. He is aiming at a juicy spider sitting on a leaf 46 cm to the east and on a branch 27 cm above the water surface. The fish is trying to knock the spider into the water so that the fish can eat the spider (a) What must the speed of the water droplet be for the...
3. Surface tension of a water strider For an animal the size of a human, surface tension seems to be a rather small and insignificant force (though it plays an important if unnoticed role in our breathing). But as animals get smaller, surface tension gets increasingly significant. (The weight of the animal goes down with the cube of the size while the surface tension only decreases linearly.) For animals like the basilisk lizard and the jacana (bird), they appear to...
3. Surface tension of a water strider For an animal the size of a human, surface tension seems to be a rather small and insignificant force (though it plays an important if unnoticed role in our breathing). But as animals get smaller, surface tension gets increasingly significant. (The weight of the animal goes down with the cube of the size while the surface tension only decreases linearly.) For animals like the basilisk lizard and the jacana (bird), they appear to...
3. Surface tension of a water strider For an animal the size of a human, surface tension seems to be a rather small and insignificant force (though it plays an important if unnoticed role in our breathing). But as animals get smaller, surface tension gets increasingly significant. (The weight of the animal goes down with the cube of the size while the surface tension only decreases linearly.) For animals like the basilisk lizard and the jacana (bird), they appear to...
3. Surface tension of a water strider For an animal the size of a human, surface tension seems to be a rather small and insignificant force (though it plays an important if unnoticed role in our breathing). But as animals get smaller, surface tension gets increasingly significant. (The weight of the animal goes down with the cube of the size while the surface tension only decreases linearly.) For animals like the basilisk lizard and the jacana (bird), they appear to...
Someone help me with
question(b) and (c),thx!!
(40 %) For a 1-mm-diameter n-hexane droplet burning in air at atmospheric pressure. Assume no heat is conducted into the interior of the liquid droplet and 4. that the droplet temperature is equal to the boiling point. The ambient air is at 298 K. (a) Estimate the mass burning rate of the droplet (b) Calculate the ratio of the flame radius to droplet radius (c) Calculate the flame temperature (d) Plot the temperature...
4. A water bug is suspended on the surface of a pond by surface tension. The bug has six legs, each in contact with the water over 5 mm. what is the maximum mass of the bug to avoid sinking? Given σ= 0.073 N/m 5 mm 5 mm
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