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If you look into a 5 mm droplet of water in air, you can see images...
A water droplet of radius 0.018 mm remains stationary in the air. If the downward-directed electric...
A water droplet of radius 0.018 mm remains stationary in the air. If the downward-directed electric field of the Earth is 150 N/C, how many excess electron charges must the water droplet have?
A water droplet of radius 0.024 mm remains stationary in the air. If the downward-directed electric...
A water droplet of radius 0.024 mm remains stationary in the air. If the downward-directed electric field of the Earth is 150 N/C, how many excess electron charges must the water droplet have?
Equipment Inside of Submarine Air Water Your eye Port 1.) You look out the window of...
Equipment Inside of Submarine Air Water Your eye Port 1.) You look out the window of a small submersible. The window is spherically shaped with center of curvature C and radius of curvature r. Both the window and the ocean water have the same index of refraction, nw. You are located at the point labeled on the diagram above and there is some equipment behind you. You can see through the window, but it also acts as a mirror in...
To a swimmer under water, objects look blurry. When goggles are worn, however, the images are...
To a swimmer under water, objects look blurry. When goggles are worn, however, the images are sharp. Why is this so? Contact with water makes the focal length of the eye change. The goggles have a focal length that corrects the vision of the swimmer. The swimmer's eyes are adapted to refraction that takes place as light passes from the air into the cornea. The goggles maintain this. The blurriness is caused by the water irritating the swimmers eyes....
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...
Flat Mirrors a) (10 pts) You are sitting in a restaurant with mirrors on the opposite...
Flat Mirrors a) (10 pts) You are sitting in a restaurant with mirrors on the opposite walls as shown below. Your drink is on the table 0.25 m from the mirror in front of you. How many images of the glass would you see in the mirror and at what distances? What are the sizes of the images? 3.0 m I TT TT 0.25 m b) (15 pts) A periscope is an optical device to see objects around obstacles, e.g....
You wish to produce inverted real images of an object with the given magnification using a...
You wish to produce inverted real images of an object with the given magnification using a converging mirror. How far from the mirror must you place the object in each case (express your answer in terms of the focal length of the mirror)? M = -0.5 M = -1 M = -2 M = -4
For safety reasons, you install a rear-window lens with a -0.296 m focal length in your...
For safety reasons, you install a rear-window lens with a -0.296 m focal length in your van. Before putting the van in reverse, you look through the lens and see the image of a person who appears to be 0.341 m tall and 0.235 m behind the van. Determine the following. (a) distance of the person behind the van -1.14 Can you write the thin lens equation which gives a relationship between the focal length of a lens, the object...
You look out the window of a small submersible. The window is spherically shaped with center...
You look out the window of a small submersible. The window is
spherically shaped with center of curvature C and radius of
curvature r. Both the window and the ocean water have the same
index of refraction, nw. You are located at the point
labeled on the diagram above and there is some equipment behind
you. You can see through the window, but it also acts as a mirror
in which you can see the equipment behind you.
What is...
This is a two part question. Part 1. To look closely at a small object, such...
This is a two part question. Part 1. To look closely at a small object, such as an insect or a crystal, you bring it close to your eye, making the subtended angle and the retinal image as large as possible. But your eye cannot focus sharply on objects that are closer than the near point, so the angular size of an object is greatest when it is placed at the near point (25 cm away from a “normal” eye)....
Equipment Inside of Submarine Air Water Your eye Port 1.) You look out the window of a small submersible. The window is spherically shaped with center of curvature C and radius of curvature r. Both the window and the ocean water have the same index of refraction, nw. You are located at the point labeled on the diagram above and there is some equipment behind you. You can see through the window, but it also acts as a mirror in...
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...
Flat Mirrors a) (10 pts) You are sitting in a restaurant with mirrors on the opposite walls as shown below. Your drink is on the table 0.25 m from the mirror in front of you. How many images of the glass would you see in the mirror and at what distances? What are the sizes of the images? 3.0 m I TT TT 0.25 m b) (15 pts) A periscope is an optical device to see objects around obstacles, e.g....
You wish to produce inverted real images of an object with the given magnification using a converging mirror. How far from the mirror must you place the object in each case (express your answer in terms of the focal length of the mirror)? M = -0.5 M = -1 M = -2 M = -4
For safety reasons, you install a rear-window lens with a -0.296 m focal length in your van. Before putting the van in reverse, you look through the lens and see the image of a person who appears to be 0.341 m tall and 0.235 m behind the van. Determine the following. (a) distance of the person behind the van -1.14 Can you write the thin lens equation which gives a relationship between the focal length of a lens, the object...
You look out the window of a small submersible. The window is
spherically shaped with center of curvature C and radius of
curvature r. Both the window and the ocean water have the same
index of refraction, nw. You are located at the point
labeled on the diagram above and there is some equipment behind
you. You can see through the window, but it also acts as a mirror
in which you can see the equipment behind you.
What is...
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