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Science & Mathematics by Anonymous 2018-07-05 03:33:50
Social Science
What does it mean when a star has negative metallicity?
4 answers
According to Wikipedia, Arcturus has a metallicity of -0.52. What does this mean? The margin of error is only 0.04.
Science & Mathematics by Anonymous 2018-07-05 03:33:09
Social Science
What dangers does planet Earth have to worry about from Space?
3 answers
I d like possible threats like an asteroid etc... please. I m not trying to sound immature. I admit I m not an expert in astronomy. I m interested to know more about the dangers that can happen at any given time to Earth. Serious answers if you please.
Science & Mathematics by Anonymous 2018-07-05 02:33:24
Social Science
Physics help please! It is on fluid mechanics. I always reward best answer!!?
No response
A person is standing on a raft; their combined mass is 233 kg. What is the volume of water displaced by the raft?
Science & Mathematics by Anonymous 2018-07-05 01:34:08
Social Science
A cell of some bacteria divides into two cells every 30 minutes.The initial population is 6 bacteria.?
5 answers
(a) Find the size of the population after t hours y(t)= (b) Find the size of the population after 4 hours. y(4)= (c) When will the population reach 24? T=
Science & Mathematics by Anonymous 2018-07-05 01:34:07
Social Science
Una recta pasa por el punto (– 1, 5) y es paralela a la recta con ecuación 5x – 3y + 7 = 0. ¿Cuál es su ecuación?
2 answers
Por favor, me pueden ayudar.
