Answer is C. All of the others are internal/molecular changes.
Answer:
this is a good suggestion
Explanation:
when the sugar cubes are crushed and they become a powder so its surface area increases. And as surface area is directly proportional to rate of reaction so the desired solution will be formed rapidly
If you exert a force on an object in motion, then depending on the
direction of the force you exert and the direction in which it's already
moving, you may speed it up, slow it down, or change the direction
of its motion. Any of these changes is called an acceleration.
In addition to that, you'll change the object's momentum and kinetic energy.
They may increase or decrease ... again depending on the directions of the
motion and the new force.
You will not change the object's mass, inertia, weight, color, cost,
political affiliation, or gender preference.
Answer:
0 J
Explanation:
Gravitational potential energy is:
PE = mgh
where m is mass, g is acceleration due to gravity, and h is the height.
Right before the coin hits the ground, its height above the ground is 0 m, so the potential energy is:
PE = mgh
PE = (0.005 kg) (9.8 m/s²) (0 m)
PE = 0 J
