Answer:
A. A sea wave generated by a displacement of water
Explanation:
Answer:
15.38 m.
Explanation:
The kinetic energy of the block is equal to potential energy of spring at maximum compression
1/ 2 m V² = 1 /2 K X²
m is mass of block , V is its velocity , K is spring constant and X is maximum compression or its amplitude.
X = 
Putting the values
x = 
= 15.38 m.
Answer:
Because there is nothing out in space , the sound waves from one astronaut's whistling can't travel over to the other astronaut's ears.