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3 years ago

8

An object is thrown straight up with a velocity of 19 m/s on a flat level surface. If it takes 3.25 seconds to reach the peak of

its arc, what will be the total time it is in the air

1 answer:

Alenkasestr [34]3 years ago

8 0

Answer:

c

Explanation:

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Two satellites are in circular orbits around a planet that has radius 9.00×106 m. One satellite has mass 68.0 kg, orbital radius

olasank [31]

Answer:

v₂ = 5131.42 m/s

Explanation:

given,

radius of the planet = r₁ = 9.00×10⁶ m

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using orbital speed of satellite

$v = \sqrt{\dfrac{GM}{r}}$

so,

$v \alpha \dfrac{1}{\sqrt{r}}$

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$\dfrac{v_2}{4800} =\sqrt{\dfrac{8\times 10^7}{7 \times 10^7}}$

v₂ = 5131.42 m/s

The orbital speed of second satellite is equal to v₂ = 5131.42 m/s

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3 years ago