Dwarf planets are very similar to
A) larger Jovian moons
B) the Earth's moon
C) smaller Jovian moons
D) comets
A
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Which of these are a part of the scientific method?
a. hypothesis b. experiment c. dogma d. observation
A car of mass 1689 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is essentially elastic
If the velocity of the truck is 17 km/h (in the same direction as the car's initial velocity) after the collision, what was the initial speed of the car? A) 19 km/h B) 38 km/h C) 29 km/h D) 10 km/h
Both optical and radio telescopes can suffer from light pollution
a. True b. False Indicate whether the statement is true or false
A planetary nebula arises from
A) the remains of a solar atmosphere. B) planetary accretion. C) a black hole. D) the gravitational attraction of interstellar dust.