Aski lift takes a 60 kg skier to the top of a 100 m slope. assuming her skis are frictionless, what is her speed when she gets to the bottom of the slope?

So basically we need to find the speed in this problem! Gravitational Potential Energy becomes Kinetic energy since she is going down a slope. The Formula for GPE is GPE=mgh and the formula for KE is KE=1/2mv^2.

m is mass, g is gravity, h is height and v is velocity (speed).

So...

GPE=KE

mgh=1/2mv^2

To Solve for V we need to get v on one side.

v=√2gh

Then Plug in the values!

g= 9.8 (It's always 9.8 if the problem doesn't say)

h= 100m

So...

v=√2(9.8)(100)

v=44.27 m/s!

it breaks and dirupture other materials and other sencews from the bottom

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.