Assume that the galaxy is 10 gyr old, the rate of star formation in the past was proportional to e^-t/t, where t is time since the galaxy formed and t = 3 gyr. and stellar lifetimes are given by t(m) = 10 gyr (m/msun)^-3. calculate the fractions of all (a) 2msun and (b) 5msun stars ever formed that are still around today.
Answers: 2
Physics, 22.06.2019 16:00, 6FOOT
The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.
Answers: 2
Physics, 23.06.2019 07:00, badatmathmate8388
Using the black numbers on the stopwatch to answer the questions. what is the most accurate reading of seconds as indicated by the long second hand? a. 5.3 b. 5.6 c. 7.2 d. 53 secs its for edg i found out it was 5.3 and tenth of seconds freebie
Answers: 1
Assume that the galaxy is 10 gyr old, the rate of star formation in the past was proportional to e^-...
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