Explanation:
A projectile (Cannon ball) is launched at an angle to the horizontal and rises up to a peak while moving horizontally. When it reaches the peak, the projectile starts to fall.
In an uniform circular motion, the direction of the net force on the object is radially inward, passing through the center of the circle.
Cosmic background radiation is electromagnetic radiation from the sky with no discernible source. The origin of this radiation depends on the region of the spectrum that is observed.
Answer:
1. C. The change is easily reversible
2. A. a physical change
Explanation:
Happy Holidays
The statement can't be true. Objects with different masses held at the same height don't have the same gravitational potential energy.
