Elements with atomic numbers from 58 through 71 are part of the
<span>
lanthanide</span> series <span />
Answer: 
Explanation:
Given
Distance putty has to travel is 3.5 m
The initial speed of putty is 9.50 m/s
Using equation of motion to determine the velocity of putty just before it hits ceiling


So, the velocity of putty just before hitting is 
Answer: It is both B and D
Select all that apply.
At night, thermal energy moves _____.
from space to the atmosphere
from the land to the atmosphere
from the atmosphere to the land
from the atmosphere to space
Answer:
Explanation:
Given
Mass 

Net Force is equivalent to 
with tension T in the string
For mass 


For cylinder

I for solid cylinder is 
thus 
Substitute the value of T we get




I think the answer should be that, Kinetic energy is contained in a moving object, while potential energy exists in a stored form.