Answer:
Immune system
Explanation:
Because they defense our body act as 'Police of the body'.
Sound at air in STP travels at 343 m/s.
We also know the formula v=f lambda where v is the velocity, f is the frequency and lambda is the wavelength.
Substituting in values to this, we get:
343 = 256 * lambda
lambda = 343/256
=1.34 3sf
Aaand upon doing this, I realise your textbook wants you to assume the speed of sound to be 330m/s, right then, well changing the value to 330, we get 1.29m
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-Rose
Distance and force.
You need to know how much force was needed and how far it went to calculate how much work was done. The answer is C.
Answer:
418.6 J
Explanation:
We know the specific heat for water is 4.186 kJ/kg * °C, so this can also write as 4.186 J/g * °C, so the heat increases 5 C in this question, so you can get 4.186(J/g * C) * 5C * 20g = 418.6 J