The answer to the question is b because acid is a substance that tastes sour, reacts with metal and turns litmus paper blue
<span>Pitch and frequency are more or less the same thing - high pitch = high frequency.
The freqency of vibration of a string f = 1/length (L) so as length decreases the frequency increases.</span>
I really don’t know but I think it’s D
Answer:
-414.96 N
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration
The force the ground exerts on the parachutist is -414.96 N
If the distance is shorter than 0.75 m then the acceleration will increase causing the force to increase
1.igneous rocks are formed when magma or lava cools and hardens
2. the cooling rate of the rock
