Ocean waves and sound waves are : mechanical wave. A and B aren't right at all. and C is wrong because they aren't electromagnetic.
Mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium.
Hope this help
The answer is b) false. Stars are mainly classified by their spectra (the elements they absorb) and their temperature.
Answer:
A. 20 N
Explanation:
weight of book is 2×10=20N
Answer:
5.99 m = 6 m
Explanation:
PE = m*g*h
235.2 J = (4 kg)(9.81 m/s^2)(h)
h = (235.2 J)/(9.81*4)
h = 5.99 m
h = 6 m
