The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through
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physics!
The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b) How high is the image... 
physics
The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b) How high is the image... 
Physics please help!
The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b) How high is the image... 
physics
A nearsighted person has a far point located only 200 cm from his eyes. Determine the focal length of contact lenses that will enable him to see distant objects clearly. does anyone have any suggestion on how to tackle this problem? 
physics
The lenstoretina distance of a woman is 1.96 cm, and the relaxed power of her eye is 55.2 D. a) What is her far point? b)What eyeglass power will allow her to see distant objects clearly, if her glasses are 1.80 cm from her eyes? 
PHYSICS
Without his glasses, Isaac can see objects clearly only if they are less than 4.2 m from his eyes. What focal length glasses worn 2.2 cm from his eyes will allow Isaac to see distant objects clearly? Our book says to convert the cm to m and subtract the two numbers 4.2  0.... 
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A woman can see clearly her right eye only when objects are between 45 cm and 155 cm away. Prescription bifocals should have what powers so that she can see distant objects clearly(upper part) and be able to read a book 25 cm away(lower part) with her right eye? Assume that ... 
PhysicsOptics
A woman can see clearly her right eye only when objects are between 45 cm and 155 cm away. Prescription bifocals should have what powers so that she can see distant objects clearly(upper part) and be able to read a book 25 cm away(lower part) with her right eye? Assume that ... 
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the question: Some size/distance cues are useful for distant objects, others for close objects. Provide one example of a cue that would be good for near objects, and one for distant objects. Explain why the cues you have selected would be less useful for objects at other ... 
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This is going to be a odd question. My dad wears contacts most of the time. When he is not he will wear his glasses. He is nearsighted. What he wants to know is can he use the same prescrition for his contacts on his glasses. He does does not want to go to the eye doctor. He ... 
Physics
The near and the far points of a shortsighted are 8 cm and 20 cm from the eyeball. a) What power of corrective lens is needed for this eye to see distant objects clearly? b)What will the resulting near point then be?(Assume that the lens is placed very close to the eye) ... 
Physics
Ordinary glasses are worn in front of the eye and usually 2.00 cm in front of the eyeball. A certain person can see distant objects well, but his near point is 60.0 cm from his eyes instead of the usual 25.0 cm. Suppose that this person needs ordinary glasses. What focal ... 
Physics
Ordinary glasses are worn in front of the eye and usually 2.00 cm in front of the eyeball. A certain person can see distant objects well, but his near point is 60.0 cm from his eyes instead of the usual 25.0 cm. Suppose that this person needs ordinary glasses. What focal ... 
Physics
Ordinary glasses are worn in front of the eye and usually 2.00 cm in front of the eyeball. A certain person can see distant objects well, but his near point is 60.0 cm from his eyes instead of the usual 25.0 cm. Suppose that this person needs ordinary glasses. What focal ... 
Help PHYSICS
(a) If your relaxed eye has a refractive power of 56.0 D, and your lenstoretina distance is 2.35 cm, determine if you are nearsighted or farsighted. (b) If you are nearsighted, determine your far point. If you are farsighted, determine your near point. 
PHYSICS HELP
(a) If your relaxed eye has a refractive power of 56.0 D, and your lenstoretina distance is 2.35 cm, determine if you are nearsighted or farsighted. (b) If you are nearsighted, determine your far point. If you are farsighted, determine your near point. 
Physics
A myopic student is shaving without his glasses. If his eyes have a far point of 1.5, what is the greatest distance he can stand from the mirror and still see his image clearly? 
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A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his... 
Physics
A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his... 
Physics
A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his... 
Physics
A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his... 
Physics
A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his... 
Physics
The near point of a patient's eye is 58.2 cm. (a) What should be the refractive power ℛ of a corrective lens prescribed to enable the patient to clearly see an object at 22.0 cm? ℛ = dpt (b) When using the new corrective glasses, the patient can see an object ... 
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13. A tree casts a shadow of 17 ft. The angle of elevation from the tip of the shadow to the top of the tree is 68°. To the nearest foot, what is the height of the tree? 14. The angle of depression of a diver from the boat is 34°, and the diver is 367 ft deep. To the nearest... 
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A farsighted person has a near point (closest point they can see clearly) of 200 cm. What power and type of lens will correct this condition and allow the person to read a book at 25 cm? 
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A person is standing at the edge of the water and looking out at the ocean (see figure). The height of the person's eyes above the water is h = 1.9 m, and the radius of the Earth is R = 6.38 x 106 m. (a) How far is it to the horizon? In other words, what is the distance d from... 
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A person sees clearly wearing eyeglasses that have a power of −2.92 diopters and sit 2.22 cm in front of the eyes. If the person wants to switch to contact lenses, which are placed directly on the eyes,what lens power should be prescribed? Answer in units of diopter. 
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From 70 feet away from the base of a tree on level ground, the angle to the top of a tree is 60⁰. What is the height of the tree? What is the approximate distance from the vantage point to the top of the tree, to one decimal point? (Assume that the tree is perpendicular ... 
Trigonometry
Johns eyes are 6 ft from the ground. He is standing 70 ft away from a tree. If the angle of elevation is 24 degrees, then how tall is the tree? 
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It is not a homework, it is my question, and I hope it is explained. Sometimes at night I look ATTENTIONALLY at the starry sky , notice and see that there is an object which is as small as a star is moving. It is very very far and has the light as the light of a star, and I ... 
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johns eyes are 6ft from the ground he is standing 70 ft away from a tree if the angle of evaluation is 24 degrees then how tall is the tree? 
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a person standing 100ft. from the base of the tree looks up to the top of the tree with an angle of elevation of 52. assuming that the persons eyes are 5ft above ground the ground how tall is the tree? 
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A TREE STANDS ON HORIZONTAL GROUND. THE ANGLE OF ELEVATION OF THE TOP OF THE TREE FROM A POINT 50 m AWAY FROM THE BASE OF THE TREE IS 11.3°. CALCULATE THE HEIGHT OF THE TREE. 
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Without glasses, your uncle Albert can see things clearly only if they are between 25.1 cm and 190 cm from his eyes. What power eyeglass lens will correct your uncle's myopia? Assume the lenses will sit 1.70 cm from his eyes. Give answer in diopters. Do not enter unit. What is... 
geometrY
See the last picture at the bottom of this web page (for a pic of this exact problem). Using ratios, Tree height = T 15/66 = 6.33/T 15T = 512.73 T = 34.182 T = 34.182 when getting this answer from my question: to estimate the height of a tree, Dave stands in the shadow of the ... 
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A person in a dark room looking through a window can clearly see a person outside in the daylight, whereas the person outside cannot see the person inside. Explain. 
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A person in a dark room looking through a window can clearly see a person outside in the daylight, where as the person outside cannot see the person inside. Explain 
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A person is standing at the edge of the water and looking out at the ocean (see the drawing). The height of the person’s eyes above the water is h=1.6 m, and the radius of the earth is R=6.38x10^6 m (use as a precise value). (1) How far is it to the horizon (in meters, use ... 
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near point of an eye is 50 cm and far point is 4 m . Which lenses should be use t read as well as see movie clearly? 
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Objects A, B, and C lie in the next room hidden from direct view of the person shown in the diagram. A plane mirror is placed on the wall of the passageway between the two rooms as shown. Which of the objects will the person be able to see in the mirror? Choose all that apply... 
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Imagine that you live in a distant galaxy far far away. This galaxy is in a different universe, and so may have different cosmology. It seems that in this distant universe, all galaxies have the same luminosity, which you have worked out is 7.0*10^30 W. You are studying a ... 
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A 2 m tall person standing on the ground looks up at an angle of 34.0 o with the horizontal and sees the top of a tree and the top of a building aligned. The tree is 20 m away from the person, and the building is 51.0 m from the person 
math
A 2 m tall person standing on the ground looks up at an angle of 34.0 o with the horizontal and sees the top of a tree and the top of a building aligned. The tree is 20 m away from the person, and the building is 51.0 m from the person 
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As the earth revolves around the sun, distant objects can be seen from different locations. This idea can be used to measure the distance between earth and nearby stars and is called stellar parallax. To see how this process works, consider the simplified scenario below. A.) A... 
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you see a distant flash of light and then you hear a thunder clap 2 seconds later. the sound of thunder moves at 343 miles per second how far away is the lighting? 
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An observer, whose eyes are 1.97 m above the ground, is standing 47.0 m away from a tree. The ground is level, and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 25.0° above the horizontal. How tall is the tree? 
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Because of the prevailing winds, a tree grew so that it was leaning 6° from the vertical. At a point 100 feet away from the tree, the angle of elevation to the top of the tree is 22°55' 
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A patient has a far point of 29.2 cm and a near point of 24.2 cm. What power (in diopters) should be prescribed to correct the patient's vision using: (b) glasses which are worn 0.5 cm away from the patient's eyes? 
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If John stands near a 30 foot tall tree and leans a 50 foot tall ladder against the tree that reaches to the top of tree, then how far is John standing away from the tree? (Round to the nearest hundredth) 
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A girl want to know the distance of a tree from where the point R where she is standing ,she used a convex lens to project the image of the tree onto a wall of 15M away ,she later moved the lens toward the tree and found that the image is again projected on the wall after ... 
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The distance D , in miles to the horizon from an obsever's point of view over water or flat earth is given below , where H is the height of the point of view in feet . if a person whose eyes are 5ft above ground level is standing at the top of hill 45 ft above 'flat"earth, ... 
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A patient has a far point of 34.6 cm and a near point of 26.0 cm. What power (in diopters) should be prescribed to give the patient normal vision for: (a) contact lenses? 1) D (b) glasses which are worn 0.9 cm away from the patient's eyes? 2) D 
gr 12 physics
A person standing at the edge of the water and looking out at the ocean/ The height of the person's eyes above water is h=1.6m. and radius of the earth is R=6.38x10^6m How far is it to the horizon. In other words, what is the distance d from the person's eyes to the horizon? ... 
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I wrote this poem is this a good title? Tribute to a Soldier Our eyes see a Soldier Who's sad, and brave Who has done what he could do For us today Our eyes see him glaring But he hates to look back He misses his family That is all he has left Our eyes see a man Who can't go ... 
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Pete is standing 2 feet away from a mirror on the ground. Pete is 5 feet tall and can just see the top of the tree in the mirror from where he is standing. The two triangles formed in the picture above are similar. If the mirror is 12 feet away from the base of the tree, how ... 
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2. The equation gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet. a. Solve this equation for h. b. Long’s Peak in the Rocky Mountain National Park, is 14,255 feet in elevation. How far can you see to the horizon from the top of ... 
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Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 cm. ... 
physics
Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 cm. ... 
physics
Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 cm. ... 
physics
Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 cm. ... 
Algebra
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physics
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iworo ajido
a tree is on one side of a river two point p and q 15metre apart are chosen on the other side of the river in a straight line with the foot of the tree on a horizontal plane.the angle of elevation of the top of the tree from p and q 32degree and 51degree respectively 1 find ... 
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ALGEBRAMAT 117
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A person is standing at the edge of the water and looking out at the ocean. The height of the person's eyes above the water is h = 1.6m. and the radius of the earth is R = 6.38 X 10^6 m. (a) How far is it to the horizon? 
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The equation D=1.2times square root h gives the distance, D, in miles a person can see to the horizon from a height, h, in feet. a. sovle for h. b. Long's Peak is 14,255 feet in elevation. How far can you see to the horizon for Long's Peak? Can you see Cheyenne, Wyoming (about... 
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