Suppose there are 10,000 civilizations broadcasting radio signals in the Milky Way Galaxy right now. Part A On average, how many stars would we have to search before we would expect to hear a signal? Assume there are 500 billion stars in the galaxy. Express your answer using two significant figures. ? NA = stars Submit Request Answer Part B How would the answer change if there were only 130 civilizations instead of 10,000? Express your answer using two significant figures. VO AE NB = stars Submit Request Answer

Suppose there are 10,000 civilizations broadcasting radio signals in the Milky Way Galaxy right now. Part A On average, how many stars would we have to search before we would expect to hear a signal? Assume there are 500 billion stars in the galaxy. Express your answer using two significant figures. ? NA = stars Submit Request Answer Part B How would the answer change if there were only 130 civilizations instead of 10,000? Express your answer using two significant figures. VO AE NB = stars Submit Request Answer

Similar questions

Parts B and C seem to be incorrect, please try again
Part C Find the components of the vector c with length c = 1.00 and angle = 30.0° as shown in (Figure 1). Enter numerically, separated by a comma, the x component followed by the y component. ► View Available Hint(s) Cx, Cy= Submit ΨΠ ΑΣΦ Previous Answers *****
Part C Evaluate AVL at t = 1.0 ms, if L = 20 mH, Io = 50 mA, and T = 1.0 ms. Express your answer using two significant figures and include the appropriate units. ► View Available Hint(s) ▼ AVL = Value Submit HA Part D μÀ V Evaluate AVL at t = 3.0 ms, if L = 20 mH, Io = 50 mA, and T = 1.0 ms. Express your answer using two significant figures and include the appropriate units. ► View Available Hint(s) P Pearson ? www ?
A commuter airplane starts from an airport and takes the route shown in the figure below. The plane first flies to city A, located 175 km away in a direction 30.0° north of east. Next, it flies for 150 km 20.0° west of north, to city B. Finally, the plane flies 190 km due west, to city C. Find the location of city C relative to the location of the starting point. Looking for: distance in km, angle in degrees west of north.
How do you solve for b?
Needs Complete typed solution with 100 % accuracy.
part c is incorrect can you re do
All of the following answers provided are wrong for part A and B and also C
B please