Answer:
False.
Explanation:
If you throw a ball into the air, Earth exerts a force on the ball. Also, the ball in the air exerts a force on Earth.
This ultimately implies that, there is a force pair between the earth and the ball.
Is a physical change because only the state of the matter has changed.
Physical changes can often be reversed. Allowing the water to evaporate will return the salt to a solid state.
It has not combined with the water to cause an irreversible chemical reaction.
Hi there!
Question - Which of the following statements is true?
Answer - C. You are exposed to nuclear radiation every day.
Why - "radiation in the form of elementary particles emitted by an atomic nucleus, as alpha rays or gamma rays, produced by decay of radioactive substances or by nuclear fission."
Speed = frequency * wavelength
