Radio telescope-puerto rico can detect wave with intensity

Assignment Help Physics

Reference no: EM13672103

The Arecibo radio telescope in Puerto Rico can detect a wave with an intensity as low as 1x10^-23 W/m². As a “best-case” scenario for communication with extraterrestrials, consider the following: Assume an advanced civilization located at point A, a distance x away from Earth, is somehow able to harness the entire power output of a Sun-like star, converting that power completely into a radio-wave signal which is transmitted uniformly in all directions from A.

1) In order for Arecibo to detect this radio signal, what is the maximum value for x in light-years?

2) How does this maximum value compare with the 100,000-ly size of our Milky Way galaxy?

The intensity of sunlight at Earth’s orbital distance from the Sun in 1350 W/m²

Reference no: EM13672103

Questions Cloud

What maximum altitude will the rocket reach : A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 88.7 m/s2 for 1.70 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum alt..

Very large electric current can flow inside a tornado : A very large electric current can flow inside a tornado from the clouds to the ground. If the magnetic field is gauged to be1.63×10-8 T at a distance of 8.17 km from the tornado, then what is the magnitude of this current?

The driver of a car is initially moving at a constant speed : The driver of a car is initially moving at a constant speed of 69.7 km/h when a traffic light turns red. If a 0.490 s reaction time is needed before the brakes can be applied, what is the distance in meters travelled by the car before it begins to sl..

Calculate entropy change in the gas : Four moles of ideal gas at 0C and atmospheric pressure undergoes isothermal expansion where its volume is doubled. Compute work the gas does. Calculate entropy change in the gas. Is heat added to or taken away from the gas? How much?

Radio telescope-puerto rico can detect wave with intensity : The Arecibo radio telescope in Puerto Rico can detect a wave with an intensity as low as 1x10-23 W/m2. As a “best-case” scenario for communication with extraterrestrials, consider the following: Assume an advanced civilization located at point A, a d..

Uniform diving board has mass-acceleration of gravity : The uniform diving board has a mass of 33 kg. There are 2 distances on it: 1. the distance from point A to point B is 1m. 2. The distance among point B and the end of the diving board is 3.6 m. discover the force on the support A when a 69 kg diver s..

Writing longer argumentative passages introduction : Writing Longer Argumentative Passages Introduction, Write an argument supporting one of the conclusions posed prior to the selection.

Kinetic energy is lost in the collision : A railroad car of mass 3.5*104 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. How much kinetic energy is lost in the collision?

Average power delivered to capacitor-resistor and inductor : A series ac circuit contains a 250-ohm resistor, a 15-mH inductor, a 3.5uF capacitor, and an ac power source of voltage amplitude 45 v operating at an angular frequency of 360 rad/s, (a) what is the power factor of this circuit? (b) Discover the aver..

User Account

All Pages