Scientific models are used to ________
A) make miniature representations of the universe
B) present the scale of the solar system to the general public
C) prove that past paradigms no longer hold true
D) make specific predictions that can be tested through observations or experiments
D
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_____ say that certain things cannot be created out of nothing or vanish into nothing
A) Conservation laws B) Laws of kinematics C) Laws of planetary motion D) Illuminance laws
What happens when a core's mass exceeds 3 solar masses and its density exceeds that which electron degeneracy pressure can support?
a. The core collapses into a black hole. b. The core collapses into a neutron star. c. The core collapses into a white dwarf. d. The core collapses into a neutron star or a black hole.
Contrast the internal structure of a planet like Jupiter with that of a typical terrestrial planet in as many ways as possible
What will be an ideal response?
A single constant 10-pound force F1 acts on a body, causing it to accelerate. Then, while F1 continues to act, a second constant force F2 is applied to the body, which comes to a momentary stop. The magnitude of F2 is
A. exactly 10 pounds. B. larger than 10 pounds. C. a bit less than 10 pounds. D. zero. E. There is not enough information to tell