Answers: 3
Physics, 22.06.2019 12:00
The sunโs mass is 2.0ร10^ 30 kg, its radius is 7.0ร10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5ร10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
Answers: 3
Physics, 22.06.2019 18:30
Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.
Answers: 1
Physics, 23.06.2019 01:20
Afisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. it takes a time of 2.70 s for the boat to travel from its highest point to its lowest, a total distance of 0.700 m. the fisherman sees that the wave crests are spaced a horizontal distance of 6.50 m apart. a. how fast are the waves traveling? b. what is the amplitude a of each wave?
Answers: 1
What are fossil fuels?...
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