No. An atom is made up of 3 kinds of particles, protons, neutrons, and electrons. Protons and neutrons make up the center of the atom.
In a slide, you’re potential energy (sitting on top of a slide) is transformed into kinetic energy when you slide down and then goes back to potential energy when you reach the bottom at a stop. No energy was destroyed nor created, just transformed from one state to another
Answer:
Since there is no external force, there is no change (movement) in the center of mass. Internally, the center of mass might change position, but the external result is still zero net velocity.
The net recoil velocity must be zero.
Draw a free body diagram to help you visualize. draw the object and use arrows to label and determine where all the forces acting upon it will be. then u add up the sum of all forces. if two forces of equal magnitude and opposite directions will cancel each other out.
You know now that 1200 km is 11° of latitude on the planet. So its circumference is roughly approximately around something like about
(360/11) • (1200 km) = 39,273 km
If it was good enough for Eratosthenes, then we can't complain.
