A boy floating on a pond watches a fish swim away from him as in the...
A boy floating on a pond watches a fish swim away from him as in the figure below. If the fish is 2.45 m beneath the surface, for what maximum distance d (in m) will he be able to see the fish? Neglect the height of the boy's eyes above the water.
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A boy floating on a pond watches a fish swim away from him as in the...
44. A boy floating on a pond watches a fish swim away from him as in...
44. A boy floating on a pond watches a fish swim away from him as in Figure P22.44. If the fish is 2.25 m beneath the surface, for what maximum distance d will he be able to see the fish? Neglect the height of the boy's eyes above the water. 2.25 m Figure P22.44
3) The archerfish is a type of fish well known for its ability to catch resting insects by spitting a jet of water at t...
3) The archerfish is a type of fish well known for its ability to catch resting insects by spitting a jet of water at them. This spitting ability is enabled by the presence of a groove in the roof of the mouth of the archerfish. The groove forms a long, narrow tube when the fish places its tongue against it and propels drops of water along the tube by compressing its gill covers. When an archerfish is hunting, its body...
A fish is 53 ㎝ below the surface of a pond. What is the apparent depth...
A fish is 53 ㎝ below the surface of a pond. What is the apparent depth (in cm) when viewed almost directly above the fish? (For water, n a. 50 b. 60 c. 40 d. 70 15. from a position 1.33.) e. 110 16. An object 60-cm high is placed 1.0 m in front of a converging lens whose focal length is 1.5 m. Determine the image height (in cm). a. 60 b. 120 C. 92 d. 180 e. 83...
2. A water balloon is thrown upward from a window 25 m above the ground and...
2. A water balloon is thrown upward from a window 25 m above the ground and hits the ground 2.95 s later. What's the maximum height above the window that the balloon reaches? a) 3.77 m b) 2.59 m c) 2.21 m d ) 1.82 m e) 1.17 m 400 m 3. A student who can swim with a speed of 2.5 m/s in still water wants to get to the other side of a 400 m wide river whose...
When a man stands near the edge of an empty drainage ditch of depth 2.80 m,...
When a man stands near the edge of an empty drainage ditch of depth 2.80 m, he can barely see the boundary between the opposite wall and bottom of the ditch as in Figure (a) shown below. The distance from his eyes to the ground is h-1.99 m. (Assume θ-29.70.) トd 2.80 m (a) What is the horizontal distance d from the man to the edge of the drainage ditch? d= (b) After the drainage ditch is filled with water...
A vertical receiving dipole antenna at a position P is 15 km away from a Hertzian...
A vertical receiving dipole antenna at a position P is 15 km
away from a Hertzian dipole antenna that is also placed vertically
(see figure below). The receiving antenna measures an E field equal
to 10 mV/m.
(a) What is the value of E that the receiving antenna will
detect at a height of 3 km above P?
(b) Assuming the receiving antenna can be tilted as it is moved,
in what direction must the receiving dipole be oriented in...
A ball is launched from a cliff that is 20.0 m above the surface of a...
A ball is launched from a cliff that is 20.0 m above the surface of a very deep lake. SEE FIGURE. The initial speed is |v_1| = 40.0 m/s. The ball follows the one-dimensional trajectory schematically shown. Assume the magnitude of gravitational acceleration is g = 9.80 m/s^2. Neglect air resistance. The ball hits the water surface and moves downward toward the bottom of the lake with an UPWARD acceleration whose magnitude is |a| = 3.00 m/^2. (Scales shown in...
2. During a play, Peterpan is lowered from above the stage using the following setup (see figure ...
2. During a play, Peterpan is lowered from above the stage using the following setup (see figure below) He cannot descend too quickly to avoid being hurt and must land on the stage not moving any faster than 4.4 m/s (which is equivalent to free falling from a 1 m height). If the stage crew is using sandbags as their counterweight with μ = 0.54, Peterpan weighs 160 lbs, and must be lowered a distance of 50 ft,how heavy must...
A U-tube contains liquid of unknown density. An oil of density 770 kg/m³ is poured into...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions....
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions. (2) You must use blank 8"x11" printer paper. (3) Begin each problem on a new page, and put your name on each page. Staple your pages together. 4) Only write on one side of the page. (5) You must write up your solutions independently (i.e. don't copy anyone else's solutions), using your own words and thought process. You must show all of your work....
44. A boy floating on a pond watches a fish swim away from him as in Figure P22.44. If the fish is 2.25 m beneath the surface, for what maximum distance d will he be able to see the fish? Neglect the height of the boy's eyes above the water. 2.25 m Figure P22.44
A fish is 53 ㎝ below the surface of a pond. What is the apparent depth (in cm) when viewed almost directly above the fish? (For water, n a. 50 b. 60 c. 40 d. 70 15. from a position 1.33.) e. 110 16. An object 60-cm high is placed 1.0 m in front of a converging lens whose focal length is 1.5 m. Determine the image height (in cm). a. 60 b. 120 C. 92 d. 180 e. 83...
2. A water balloon is thrown upward from a window 25 m above the ground and hits the ground 2.95 s later. What's the maximum height above the window that the balloon reaches? a) 3.77 m b) 2.59 m c) 2.21 m d ) 1.82 m e) 1.17 m 400 m 3. A student who can swim with a speed of 2.5 m/s in still water wants to get to the other side of a 400 m wide river whose...
When a man stands near the edge of an empty drainage ditch of depth 2.80 m, he can barely see the boundary between the opposite wall and bottom of the ditch as in Figure (a) shown below. The distance from his eyes to the ground is h-1.99 m. (Assume θ-29.70.) トd 2.80 m (a) What is the horizontal distance d from the man to the edge of the drainage ditch? d= (b) After the drainage ditch is filled with water...
A vertical receiving dipole antenna at a position P is 15 km
away from a Hertzian dipole antenna that is also placed vertically
(see figure below). The receiving antenna measures an E field equal
to 10 mV/m.
(a) What is the value of E that the receiving antenna will
detect at a height of 3 km above P?
(b) Assuming the receiving antenna can be tilted as it is moved,
in what direction must the receiving dipole be oriented in...
A ball is launched from a cliff that is 20.0 m above the surface of a very deep lake. SEE FIGURE. The initial speed is |v_1| = 40.0 m/s. The ball follows the one-dimensional trajectory schematically shown. Assume the magnitude of gravitational acceleration is g = 9.80 m/s^2. Neglect air resistance. The ball hits the water surface and moves downward toward the bottom of the lake with an UPWARD acceleration whose magnitude is |a| = 3.00 m/^2. (Scales shown in...
2. During a play, Peterpan is lowered from above the stage using the following setup (see figure below) He cannot descend too quickly to avoid being hurt and must land on the stage not moving any faster than 4.4 m/s (which is equivalent to free falling from a 1 m height). If the stage crew is using sandbags as their counterweight with μ = 0.54, Peterpan weighs 160 lbs, and must be lowered a distance of 50 ft,how heavy must...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions. (2) You must use blank 8"x11" printer paper. (3) Begin each problem on a new page, and put your name on each page. Staple your pages together. 4) Only write on one side of the page. (5) You must write up your solutions independently (i.e. don't copy anyone else's solutions), using your own words and thought process. You must show all of your work....
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