Answer:
The first is true
The second is true IF the statement means that the human body contains energy
The third is true
The fourth is false
Answer:
Velocity is the rate of change of displacement( change of distance in a particular direction with respect to time) , and acceleration is the rate of change of velocity per unit of time. ... Also, speed is a scalar quantity but velocity and acceleration are vector quantities.
Explanation:
Peroxide is the chemical responsible for opening the hair cuticle
name= calcium
atomic mass= 40.078 atomic mass unit
no of protons= 20
no of electrons=20
Elements are substances that contain only 1 kind of atom.
