Answer:
A plain mirrior is a mirrior with flat reflective surface.
hope it is helpful for you.
Break into small particles. The heat causes the rock to break up and form pebbles or sand. Hope that helped. Have a nice day
Answer:
only the weight of the ball will act on the ball
Explanation: There is no contact force on the ball. Also there is no air resistance on the ball so the friction force on the ball due to air is not shown