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S_A_V [24]
3 years ago
6

Facts about Neptune and uranus

Physics
2 answers:
Marat540 [252]3 years ago
8 0

Uranus was originally discovered by Sir William Herschel in 1781.  Neptune is the 8th planet from the sun making it the most distant in the solar system.  Neptune is the smallest of the Ice Giants.  The atmosphere of Neptune is made of Hydrogen, helium, And some methane.  Uranus make one trip around the sun every 84 earth years. Uranus has the coldest temperatures of any planet.  I hope This helps!!!

riadik2000 [5.3K]3 years ago
8 0

Uranus's spin axis is rotated at least 97 or 98 degrees while no other planets has anywhere near Uranus's massive tilt (So crazy!) . Neptune is the farthest planet away from the Sun but surprisingly it is not the coldest planet. Uranus is the coldest planet (probably because of it's axis) but it is not the farthest planet from the sun. (Pluto was out of the race because it wasn't considered as a "real planet" and as a "dwarf planet") All the planets in the solar system are named as Greek gods, Uranus is the " Ancient Greek god of the sky " and Neptune was named after the "Roman god of the sea"(possibly because of it's   bluish color ( or colour ) ) .  


Hope this helps :)

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3 years ago
A 30-cm-diameter, 1.2 kg solid turntable rotates on a 1.2-cm-diameter, 450 g shaft at a constant 33 rpm. When you hit the stop s
skelet666 [1.2K]

Answer:

frictional force = 0.52 N

Explanation:

diameter of turn table (D1) = 30 cm = 0.3 m

mass of turn table (M1) = 1.2 kg

diameter of shaft (D2) = 1.2 cm = 0.012 m

mass of shaft (M2) = 450 g = 0.45 kg

time (t) = 15 seconds

acceleration due to gravity (g) = 9.8 m/s^{2}

radius of turn table (R1) = 0.3 / 2 = 0.15 m

radius of shaft (R2) = 0.012 / 2 = 0.006 m

total moment of inertia (I) = moment of inertia of turn table + moment of inertia of shaft

I = 0.5(M1)(R1)^{2} + O.5 (M2)(R2)^{2}

I =  0.5(1.2)(0.15)^{2} + O.5 (0.45)(0.006)^{2}

I = 0.0135 + 0.0000081 = 0.0135081

ω₁ = 33 rpm = 33 x \frac{2π}{60} = 3.5 rad/s

α = -ω₁/t = -3.5 / 15 = -0.23 rad/s^{2}

torque = I x α

torque = 0.0135081 x (-0.23) = - 0.00311 N.m

torque = frictional force x R2

- 0.00311 = frictional force x 0.006

frictional force = 0.52 N

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Answer:

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