+1-415-670-9189
info@expertsmind.com
How large a radio telescope would need to detect
Course:- Physics
Reference No.:- EM1349708




Assignment Help
Assignment Help >> Physics

Q. A wire streches from the top of a vertical pole to a point on level ground 16 feet from the base of the pole. if the wire makes an angle of 62 degrees withe the ground, find the height of the pole and the length of the wire.

Q. Consider a civilization broadcasting a signal with a power of 1.8×104 watts. The Arecibo radio telescope, which is about 300 meters in diameter, could detect this signal if it is coming from as far away as 134 light-years. Suppose instead that the signal is being broadcast from the other side of the Milky Way Galaxy, about 70000 light-years away.

How large a radio telescope would we need to detect this signal? (Hint: Use the inverse square law for light.)




Put your comment
 
Minimize


Ask Question & Get Answers from Experts
Browse some more (Physics) Materials
A solid marble, a solid disk and a hoop have the same mass (M = 1.4 kg) and the same radius. What is the minimum height that the marble, disk and hoop can be released so that
A uniform plank of length 5.9 m and weight 212 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support .To what distance x can a person wh
0.700-kg ball traveling horizontally on a frictionless surface approaches a very massive stone at 20.0 m/s perpendicular to wall, What is the magnitude of the change in moment
The graph in the figure shows the electric potential energy as a function of separation for two point charges. If one charge is +0.44 nC, what is the other charge in nanoCou
A uniform disk of mass 10m and radius 3.0r can rotate freely aboutits fixed center like a merry-go-round. A smaller uniform disk of mass m and radius r lies on top of the la
Bob's Small Time Grocery has sent a request for proposal (RFP) for designing a simple website for their business. They are unsure what they want, but they do not want to pay
Cliff and Will support the board at each end so that it is horizontal. A 61 kg boulder is placed on a 2.00 m long board at a point that is x from Cliff. What is the displace
A 145 g copper bowl contains195 g of water, both at 20.0°C. Avery hot 300 g copper cylinder is dropped into the water, causing the water to boil, by 5.55 g being converted to