Write the formula for potential energy (blank 1). Calculate the potential energy in Joules (J) of an object weighing 4 kilograms and sitting 4 meters off the ground if gravity is 9.8 meters per second squared. Enter your answer (blank 2).

If a || b and e || f, what is the value of y ?

How have the greenhouse gasses increased from the year 2000 to 2018

Kelly has come up with an explanation for why her sister is sometimes in a good mood and other times in a bad mood. she speculates that it is based on the hours of sleep her sister got the previous night. this explanation for her sister's behaviors is an example of a(n)