<span>A mechanical wave is created when a source of energy causes a vibration to travel through a medium
And yeah lol
A mechanical wave is a disturbance in matter that carries energy from one place to another :)
This what you needed? </span>
<span>To find the gravitational potential energy of an object, we can use this equation:
GPE = mgh
m is the mass of the object in kg
g = 9.80 m/s^2
h is the height of the object in meters
GPE = mgh
GPE = (0.700 kg) (9.80 m/s^2) (1.5 m)
GPE = 10.3 J
The gravitational potential energy of this can is 10.3 J</span>
Answer:
Part a)
m = 232.1 gram
Part b)
M = 928.6 gram
Explanation:
Part a)
As we know that frequency of vibration for a given spring block system is given by formula
so if it is given as 0.90 Hz then we will have
Now if additional mass is attached with it the frequency changed to 0.50 Hz
now divide two equations
Part b)
Now the frequency is changed to 0.45 Hz
so again we will have
again divide it with first equation above
as we know that m = 232.1 g
so total mass needed for 0.45 Hz will be
Balance:
a book resting on a table
a car driving at 10 miles per hour in constant velocity
a cat sitting on a chair
a bulb that attach to the ceiling
your grandma sleeping on a bed
Unbalance:
your brother sprinting across the kitchen
a ball rolling at 5 m/s^2
your mom trying to run at 2 m/s^2 to spank you
you dropping your coffee mug on a floor
a cat jumping out of your bed
a tear from your eye falling through the floor
Hope this helps
Answer:
The kelp forest's biodiversity decreased, and there were fewer sea otters to use as a resource.
Explanation: