Answer:
theres only 118 elements that are discovered. now that they're the only ones out there
Explanation:
Answer:
The idea behind space expansion is that after the big bang, the universe started infinitely expanding. It's also called metric expansion. Stephen Hawking's A Brief History of Time goes further into detail on this.
Answer:
answer is option d
Explanation:
just took unit test edg 2021
If I tell you that I traveled 30 miles in the last 2 hours, the only thing you can calculate is my average speed during those two hours. You can't tell anything about my acceleration or the direction in which I traveled.
Answer:
Gravitational potential energy stored is 9.8 J.
Given:
G = 9.8 
height = 0.5 m
mass = 2 kg
To find:
Gravitation Potential energy stored = ?
Formula used:
Potential energy = mGh
m = mass
G = acceleration due to gravity
h = height
Solution:
Potential energy of the object is given by,
Potential energy = mGh
m = mass
G = acceleration due to gravity
h = height
Potential energy = 2 × 9.8 × 0.5
Potential energy = 9.8 Joule
Gravitational potential energy stored is 9.8 J.