Answer:
B. The particles that make up material B have more mass than the
particles that make up material A.
Explanation:
It is a chemical change because the baking soda and vinegar are reacting to form a new product.
Explanation:
v = wavelength x frequency
330 = 5 . 10-² m x f
f = 6600 Hz
the frequency that human can hear is about 20 Hz - 20000 Hz
so human can hear the note.
These are known as balanced forces because they will not change the motion of the object, and it will remain at rest unless forces become unbalanced- meaning they would be unequal and not opposing.