Physics, 25.11.2019 23:31 susanspagoot6385
The perihelion of the comet totas is 1.69 au and the aphelion is 4.40 au. given that its speed at perihelion is 28 km/s, what is the speed (in km/s) at aphelion (1 au = 1.496 ✕ 1011 m)? (hint: you may use either conservation of energy or angular momentum, but the latter is much easier.)
Answers: 1
Physics, 22.06.2019 18:30, leslylinares454
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, 22.06.2019 19:00, arianaaldaz062002
According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?
Answers: 3
Physics, 22.06.2019 19:40, xman32201
Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?
Answers: 1
The perihelion of the comet totas is 1.69 au and the aphelion is 4.40 au. given that its speed at pe...
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