Answers: 3
Physics, 23.06.2019 08:00
The sun's declination is 0° at the a. summer and winter solstice b. summer and winter equinox c. vernal and autumnal solstice d. vernal and autumnal equinox
Answers: 1
Physics, 23.06.2019 08:00
According to piaget’s stages of cognitive development, the child does not differentiate between self and other objects. the child repeats rewarding activities, discovers new ways to get what he or she wants, and may have imaginary friends. which period is described?
Answers: 1
Physics, 23.06.2019 09:30
Which statements identify what astronomers currently know and think will happen with our universe? check all that apply. the big bang produced dark energy, which accounts for some of the energy needed to expand the universe. the vastness of space may contain a type of matter known as "dark matter." the universe is currently shrinking at a rapid rate. the universe is currently expanding at an accelerating rate. the big bang theory explains all the energy and matter discovered by scientists.
Answers: 2
Physics, 23.06.2019 09:50
Estimates show that the total energy output of the sun is 5 × 1026 j/s. what is the corresponding loss in kg/s of the sun?
Answers: 3
What is the relationship between the temperature of a star and its luminosity?...
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