Earthin con to the Sn Question 39 which ofthkleing-m? A hypot always hve one or

Question

Earthin con to the Sn Question 39 which ofthkleing-m? A hypot always hve one or moreendictions Question 40 The comoical priciple states ch T?? universe is expanding in all directins at the same rate The universe is in a ??eady state" El Physical lows change from place to place in the wniverse Question 41 Lke ? The universe looks thr same Earth and oar Moon, Plato has a relatively large moom mmd Charon. Triton. Cenes. Miranda Question 42 Which of these observations would allow you to measure the mass of a planet? The planet's distance from the Sun J The orbit of one of that planet's moons G The planet's orbital period The planet's rotational period The planet's temperature Question 43 What is a meteorite? A fireball. An iron-rich rock A volcanic rock A streak of light in the sky A rock that fell to Earth from space Question 44 A scientific theory can be shown to be wrong if It was first proposed as a conjecture A majority of people do not accept it Scientists gather new data that contradict its predictions ?Cultural beliefs evolve to contradict it

Explanation / Answer

38. B- the earths orbit is elliptical around the sun and the sun is not in the center of the orbit. Hence when earth is at the point on the orbit closest to the sun, we experience winter, and when it is at the point farthest from the sun we experience summer
39. A- A scientific theory is intended to explain or interpret facts. There maybe many theories that support a fact and can be very different from each other
40. D- It is clearly stated so in the cosmological principle
41. A- Charon. Pluto's largest moon
42. B- The mass of a planet is determined by observinng its gravitational effect on other objects like its moon or a satellite using newtons law of gravitational
43. E
44. C- In order for a thoery to be rejected, another theory with more substantial evidence must be presented

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