Which one of the following types of electromagnetic radiation causes certain substances to fluoresce?
a. ultraviolet rays
b. infrared waves
c. cosmic rays
d. x rays

Kinetic energy = 1/2mv^2. since the mass is constant we can form a ratio of it's kinetic energy at 60 divided by that at 30 to see ke(60)/ke(30) = +(60^2)/30^2). this may be said to 300% increase.

Ibelieve the answer is b

Potato’s are the right way to go promise not apples i’m 5

It maybe because uranus is made of gas but uranus has a solid core in the middle