Find the skin depth for sea water whose resistivity is ρ = 0.20 Ω / m...
Find the skin depth for sea water whose resistivity is ρ = 0.20 Ω / m for a frequency of 30 Khz and 30 Mhz. What frequency would you use to communicate with a submarine that is at a depth of less than 100 m?
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Find the skin depth for sea water whose resistivity is ρ = 0.20
Ω / m...
A submarine is at a depth of 1000 m in sea water (density = 1.025 g/cm3)....
A submarine is at a depth of 1000 m in sea water (density = 1.025 g/cm3). For the comfort of the crew, the interior is kept at a pressure of 1.0 atm. What is the TOTAL force on a circular window with a diameter of 0.50 m?
2) Consider copper (o 5.7x10 S/m and u1) wires operating at 60 Hz and 100 MHz (a) Calculate the skin depth at each...
2) Consider copper (o 5.7x10 S/m and u1) wires operating at 60 Hz and 100 MHz (a) Calculate the skin depth at each frequency (b) Estimate the resistance of a 0 Gauge wire (diameter-8.25 mm that is commonly used in homes) that is 10 meters long at both frequencies. Remember to compare the skin-depth to the wire diameter (c) For copper wires operating at 60 Hz what is roughly is the upper limit on the radius of a solid wire...
When the U.S. submarine Squalus became disabled at a depth of 56.5 m, a cylindrical chamber...
When the U.S. submarine Squalus became disabled at a depth of 56.5 m, a cylindrical chamber was lowered from a ship to rescue the crew. The chamber had a radius of 2.18 m and a height of 3.88 m, was open at the bottom, and held two rescuers. It slid along a guide cable that a diver had attached to a hatch on the submarine. Once it reached the hatch and clamped to the hull, the crew could escape into...
quastion 5 Q5. A radio station transmits with wavelength of 740 m. You are listening to the radio in your car when you enter a tunnel. The depth of the tunnel below the surface of the Earth slowly...
quastion 5
Q5. A radio station transmits with wavelength of 740 m. You are listening to the radio in your car when you enter a tunnel. The depth of the tunnel below the surface of the Earth slowly increases. At what depth will you no longer be able to hear the radio? The ground has a resistivity of 100 ohm-m. Reception ceases when the signal is reduced to 0.1% of the surface value. (Hint! Penetration depth in MT survey Q6....
A 62.5 m length of insulated copper wire is wound to form a solenoid of radius 2.3 cm. The copper wire has a radius of 0.51mm. (Assume the resistivity of copper is ρ = 1.7 ✕ 10−8 Ω · m.) (a) What is t...
A 62.5 m length of insulated copper wire is wound to form a solenoid of radius 2.3 cm. The copper wire has a radius of 0.51mm. (Assume the resistivity of copper is ρ = 1.7 ✕ 10−8 Ω · m.) (a) What is the resistance of the wire? Ω (b) Treating each turn of the solenoid as a circle, how many turns can be made with the wire? turns (c) How long is the resulting solenoid? m (d) What is...
Let us assume that the water table on the island is 2 m above sea level. Then, t 2 m, so 2 m/0.03...
Groundwater
Let us assume that the water table on the island is 2 m above sea level. Then, t 2 m, so 2 m/0.03-h 66.67 m. Thus we can predict that if we drill a hole on the island we would not come to salty groundwater for approximately 67+ 2 meters, or about 69 m from the top of the water table. This would be 67 m below sea level. a] Suppose you found a place on the island where...
7. a) Calculate the skin depth for a 2700 MHz signal conducted by a flat copper...
7. a) Calculate the skin depth for a 2700 MHz signal conducted by a flat copper sheet which is 1/4 inch thick. Show the equation, all steps, and (metric, SI) units in your answer b) Fill in the blanks from the word list below. The Smith chart gives you a way to visualize impedance matching and transmission line loss. Once around the outside of the chart is wave length. The smaller the circle you draw on the chart is, the...
6. A cord of ρ = 30 g/m is tightly tied between two strong posts a...
6. A cord of ρ = 30 g/m is tightly tied between two strong posts a distance 3.0 m apart, so that it is under a tension of 100 N. The cord is plucked so that resonant standing waves are set up. (a) Find the three longest wavelengths that are allowed in the cord. (b) Find the corresponding frequencies. (c) The tension is now adjusted so that the new fundamental frequency corresponds to that of the second overtone in part...
circle please Problem 2 A submarine is a distance L = 500 m below the surface...
circle please
Problem 2 A submarine is a distance L = 500 m below the surface of the ocean and sends a radio signal up to a battleship at the surface of the ocean Some of the signal is reflected at the surface back into the ocean. Some of the signal passes through the surface refracted. The signal that passes through the surface will make a cirele of diameter d. The battleship must be within that cirele to receive the...
Question 1 (1 point) Saved Ultrasonic sound that travels at 1530 m/s in ocean water is...
Question 1 (1 point) Saved Ultrasonic sound that travels at 1530 m/s in ocean water is bounced off the ocean floor and returns to the ship above. If the round trip takes 3 s, the depth of the water is Question 1 options: 2295 m. 1530 m. 3060 m. 4590 m. Question 2 (1 point) Saved A bass fiddle is louder than a harp because of its Question 2 options: sounding board. thicker strings. lower pitch. all of the above...
2) Consider copper (o 5.7x10 S/m and u1) wires operating at 60 Hz and 100 MHz (a) Calculate the skin depth at each frequency (b) Estimate the resistance of a 0 Gauge wire (diameter-8.25 mm that is commonly used in homes) that is 10 meters long at both frequencies. Remember to compare the skin-depth to the wire diameter (c) For copper wires operating at 60 Hz what is roughly is the upper limit on the radius of a solid wire...
quastion 5
Q5. A radio station transmits with wavelength of 740 m. You are listening to the radio in your car when you enter a tunnel. The depth of the tunnel below the surface of the Earth slowly increases. At what depth will you no longer be able to hear the radio? The ground has a resistivity of 100 ohm-m. Reception ceases when the signal is reduced to 0.1% of the surface value. (Hint! Penetration depth in MT survey Q6....
Groundwater
Let us assume that the water table on the island is 2 m above sea level. Then, t 2 m, so 2 m/0.03-h 66.67 m. Thus we can predict that if we drill a hole on the island we would not come to salty groundwater for approximately 67+ 2 meters, or about 69 m from the top of the water table. This would be 67 m below sea level. a] Suppose you found a place on the island where...
7. a) Calculate the skin depth for a 2700 MHz signal conducted by a flat copper sheet which is 1/4 inch thick. Show the equation, all steps, and (metric, SI) units in your answer b) Fill in the blanks from the word list below. The Smith chart gives you a way to visualize impedance matching and transmission line loss. Once around the outside of the chart is wave length. The smaller the circle you draw on the chart is, the...
circle please
Problem 2 A submarine is a distance L = 500 m below the surface of the ocean and sends a radio signal up to a battleship at the surface of the ocean Some of the signal is reflected at the surface back into the ocean. Some of the signal passes through the surface refracted. The signal that passes through the surface will make a cirele of diameter d. The battleship must be within that cirele to receive the...
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