I think its a metamorphic rock because i know 100% that a metamophic rocks are created by heat and pressure
C is the answer Because chemical energy Create heat And thermal power relates to heat energy
a)
Amplitude of wave is given as maximum displacement from mean position
So here amplitude is 1.25 cm
b)
Wavelength is the length of the wave that it travels in one time period
From graph we can say the wavelength is given as 3cm
PART C)
Time period of wave is the time after which it repeats its shape
Speed of the wave = 21 cm/s
time period = wavelength / speed


Now frequency is


PART D)
Time period = \frac{1}{f}[/tex]

Answer:
option (c)
Explanation:
According to the newton's third law, for every action there is an equal and opposite reaction.
As the astronaut throw the tool away from the shuttle, it means the action force is in the direction away from the shuttle and according to Newton's third law, the reaction force is getting in the direction of shuttle.