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Consider a civilization broadcasting a signal with a power of 1.6*10^4 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 126 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.)
Your bicycle has a mass of 9.1 kilograms. You accelerate at a rate of 1.79 m/s^2. Calculate the net force that is accelerating the bicycle.
The role of women in foraging and horticulutral based societies? How women's status is influenced by her participation in food procurement?
Choose the representative natural ecosystem in area like as preserves or parks which are managed for native species. How humans may have influenced biogeochemical cycles in that ecosystem.
Based on the decision of individual states to fund Medicaid to different levels, how does this policy national wide health care? Should this be centralized rather than positioned at the state level for decisions as to funding levels?
Which of the following statements about the beak of soapberry bugs is false? a. Its length is a heritable trait. b. Its length has evolved in response to changes in fruits that the insect feeds on.
Topic sentence for this: public school system could teach students to digest information about subjects in the absence of tests by teaching them how to digest information.
What are five major categories of hazards associated with terrorism. Which type of attack would be most logical to conduct in the United States and why?
As hospital administrator, you are informed of the situation and are charged with making a decision on what the hospital's next step should be. Should you simply allow the parents to forgo the blood transfusion, or should you obtain a court order to ..
Explain how does correctional facet influence the law enforcement facet of system? How can system be modified to eliminate self-perpetuating cycle of crime and recidivism.
Researchers have found that ________ are more likely to develop serious depression stemming from learned helplessness and hopelessness than ________.
What would be a good topic for an analysis of the allegory of the cave in relation to the the history of the world?
our Grandma Pauline has just won a microwave oven in a radio contest. When it arrives at her house, it sits on her counter, unused, for a month.
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