Answer:

Explanation:
The gravitational potential energy of an object is the energy possessed by the object due to its location in the gravitational field.
This energy is always measured as a difference with respect a "zero level" - generally taken as the ground level.
Therefore, it generally makes more sense to measure the change in gravitational potential energy of an object when its height is changed; this is given by:

where:
m is the mass of the object
is the acceleration due to gravity
is the change in height of the object
I believe its B. it contains only the colors of the rainbow and TV waves
Hope it helped
Answer:
B
Explanation:
a straight yellow is a no pass zone
Answer:
(a) 7.1 m /sec
(b) 339.9 N/m
(c) 19.91 cm
Explanation:
We have given mass m = 267 gram = 0.267 kg
Time period T = 0.176 sec
Total energy of the oscillating system = 6.74 J
We know that energy is given by
(a) 


(b) Now 
We know that 


(c) We know that energy is given by



A device that does work with one movement and changes the size or direction of a force is a simple machine.