50 points! a dancer leaps across the stage in a beautiful grand jete. the ballerina leaps at an angle of 25° and is able to jump a horizontal distance of 1.5m. what is her initial x and initial y velocity? (hint: find vi first, then vxi and vyi)

The horizontal range formula tells us

where is the dancer's initial speed, is her launch angle, and is the acceleration due to gravity. So

Her initial velocity as a vector is

where

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.