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3 years ago

When several radio telescopes are wired together, the resulting network is called a radio _____?

1 answer:

6 0

In order for the statement to be complete, the word needed is the interferometer. It is an optical device whose application is to make to ray beams from the single beam of light. It is usually in the form of reflection to produce interference.

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An electron with a speed of 0.965 c is emitted by a supernova, where c is the speed of light. What is the magnitude of the momen

Jlenok [28]

Answer:

$1.0047\times 10^{-21}kg.m/s$

Explanation:

Relativistic momentum is given by:

$p=\gamma m u$

where, $\gamma=\frac{1}{\sqrt{1-\frac{u^2}{c^2}}}$

Speed of the electron, u = 0.965 c (given)

Mass of the electron, m = 9.1 ×10⁻³¹ kg

$\gamma=\frac{1}{\sqrt{1-\frac{(0.965c)^2}{c^2}}}=\frac{1}{\sqrt{0.2622}}=3.81$

$p=3.81\times 9.1\times 10^{-31}\times 0.965\times 3\times 10^8=1.0047\times 10^{-21}kg.m/s$

3 0

3 years ago

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Are Roots or Plant Making Cracks in The Concrete Chemical or Weathering?

DiKsa [7]

The answer is Weathering since its nature breaking down the concrete.

3 0

4 years ago

Which of the following is true about APR

Studentka2010 [4]

The answer for this is a

3 0

4 years ago

In one of the original Doppler experiments, a tuba was played at a frequency of 64.0 Hz on a moving flat train car, and a second

wolverine [178]

Answer:

$f_{beat} = 1.64\ Hz$

Explanation:

given,

frequency of tuba.f = 64 Hz

Speed of train approaching, v = 8.50 m/s

beat frequency = ?

using Doppler's effect formula

$f' = f(\dfrac{v}{v-v_s})$

v_s is the velocity of the source

v is the speed of sound, v = 340 m/s

now,

$f' = 64\times (\dfrac{340}{340 - 8.50})$

f' = 65.64 Hz

now, beat frequency is equal to

$f_{beat} = f' - f$

$f_{beat} = 65.64 - 64$

$f_{beat} = 1.64\ Hz$

hence, beat frequency is equal to 1.64 Hz

3 0

3 years ago

What is the equivalent resistance in this circuit?<br><br> What is the current in this circuit?

kramer

All these resistors are in series so we can take the sum of them by:

Rtotal = R1 + R2 + R3......

So...

Rtotal = 2 + 3 + 4 + 6

Rtotal = 15

So now the total resistance in the circuit is 15 ohms and the potential difference applied to the circuit is 45 volts

Now we can use:

V = IR

Isolate for I

V/R = I

45/15 = I

I = 3 amps (A)

3 0

4 years ago

Read 2 more answers