Question
In: Physics
6. The Very Long Baseline Array radio interferometer (VLBA) has a longest baseline of 8000 km...
6. The Very Long Baseline Array radio interferometer (VLBA) has a longest baseline of 8000 km and can operate at frequencies as high as 44 GHz. The Keck interferometer has a baseline of 100 m and operates at a near-infrared wavelength of 2 micron. (a) Which instrument has the highest angular resolution (smallest diffraction angle)? (b) For the VLBA, what is the smallest distance two radio transmitters could be on the Moon that could still be discerned? Use a lunar distance of 384,000 km.
Solutions
genius_generous answered 1 year agoRelated Solutions
An automobile has a vertical radio antenna 1.10 m long. The automobile travels at70.0 km/h on...
An automobile has a vertical radio antenna 1.10 m long. The
automobile travels at70.0 km/h on a horizontal road where the
Earth's magnetic field is 50.0 µT, directed toward the north and
downwards at an angle of 65.0° below the horizontal.
(a) Specify the direction the automobile should move in order
to generate the maximum motional emf in the antenna, with the top
of the antenna positive relative to the bottom.
(b) Calculate the magnitude of this induced emf.
1. A three-phase overhead line 200 km long has resistance= 0.16 Ω/km an conductor diameter of...
1. A three-phase overhead line 200 km long has resistance= 0.16
Ω/km an conductor diameter of 2 cm with spacing of 4 m. Find: (a)
the ABCD constants (b) the Vs and Is. When the line is delivering
full load of 50 MW at 132 kV and 0.8 lagging pf, (c) efficiency of
transmission line.
2. A three-phase voltage of 11 kV is applied to a line having R
= 10 Ω and X = 12 Ω per conductor. At...
c) Consider a city which is locate on a long (10 km.) thin island. It has...
c) Consider a city which is locate on a long (10 km.) thin
island. It has a population density of 100 people per km. which is
the same everywhere in the city. Each person drinks exactly 1 cup
of coffee per day and are willing to pay $5 per cup. The average
cost of selling coffee is simple: the minimum average cost is $2
per cup if it sells 200 cups per day and the average cost rises by
10...
6. A long, straight wire has a 10.0-
6. A long, straight wire has a 10.0-
The country of Solidia is politically very stable and has a long tradition of respecting property...
The country of Solidia is politically very stable and has a long
tradition of respecting property rights. If several other countries
suddenly became politically unstable, we would expect Solidia’s
a. real interest rate to rise.
b. real exchange rate to rise.
c. net exports to rise.
d. None of the above is likely.
Please don't just tell me the answer. Please walk me through the
process of how you came to choose the answer. I am confused.
6) A meteor of mass 575 kg has speed 90.0 m/s when it is 800 km...
6) A meteor of mass 575 kg has speed 90.0 m/s when it is 800 km
above the surface of the Earth. It is falling vertically and
strikes a bed of sand in which it is brought to rest in 3.25 m.
Ignore the effects of air resistance. a) What is its speed just
before striking the sand? b) How much work does the sand do to stop
the meteor? c) What is the average force exerted by the sand...
Create a game of Connect Four using a two dimensional array (that has 6 rows and...
Create a game of Connect Four using a two dimensional array
(that has 6 rows and 7 columns) as a class
variable. It should be user friendly and be a two person
game. It should have clear directions and be visually appealing.
The code MUST have a minimum of 3 methods (other than the main
method). The player should be able to choose to play again.
**Code must be written in Java**
Please add explain 1. The country of Nowhere is politically very stable and has a long...
Please add explain
1. The country of Nowhere is politically very stable and has a
long tradition of respecting property rights. If several other
countries suddenly became politically unstable, which statement
would happen?
a. Nowhere's net exports would fall
b. Nowhere's real interest rate would rise
c. Nowhere's real exchange rate would fall
d. Nowhere's net exports would not change.
2. If a country has $50 million of net exports and $70 million
of saving, what must be net capital...
A very long conducting tube (hollow cylinder) has inner radius a and outer radius b. It...
A very long conducting tube (hollow cylinder) has inner radius
a and outer radius b. It carries charge per unit
length ?? where ? is a positive constant with
units of C/m. A line of charge lies along the axis of the tube. The
line of charge has charge per unit length +?.
Part E
Calculate the magnitude the electric field in terms of
? and the distance r from the axis of the tube
for r>b.
Express your answer...
A very long conducting tube (hollow cylinder) has inner radius a and outer radius b. It...
A very long conducting tube (hollow cylinder) has inner radius
a and outer radius b. It carries charge per unit
length +?, where ? is a positive constant with
units of C/m. A line of charge lies along the axis of the tube. The
line of charge has charge per unit length +?.
Part A
Calculate the electric field in terms of ? and the
distance r from the axis of the tube for
r<a.
Part B
Calculate the electric...
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