he energy of an object moving in a circle is given by the following equation: E=(2kgm2)ω2−(4Jrad)θE=\left(2kgm^2\ right)\omega^2-\left(4\frac{J}{rad} \right)\thetaE=(2kgm2)ω2−(4radJ​)θ What is the magnitude of the angular acceleration of the object (in rad/s2)? Assume that this system is isolated.

as technology advances, new experiments often expose problems in accepted theories. c

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answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.