A 75kg refrigerator is located on the 70th floor of a skyscraper (300m above ground). What is the potential energy of the refrigerator?

Explanation:

potential energy = mgh

ATQ,

m=75kg, h=300m, g=9.8m/s²(if not given)(10 m/s² if given)

therefore, 75×300×9.8 = 2,20,500J.

hope this helps you.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.