Answer:
31.25
Explanation:
The formula for the potential energy of a spring is 
, where x is the distance in meters the spring is stretched. Plugging in the numbers that you are given, you get 
. Hope this helps!
Answer:
C because it literally in Australia but the pfp tho
You can decrease the mass, or you can increase the force applied to the object
P=W/t
P=Power
W=Work
t=Time
Convert 16 minutes in seconds:
16 mins = 960 secs
P=6720/960=7.23 W [Watt]
supply it with more energy. one way to do is to produce vibrations in the same frequency as the wave. This would cause resonance leading to higher amplitude
