the answer to the question is false
Answer:
Protons have a positive charge
neutrons have a neutral charge
Electrons have a negative charge
Explanation:
Protons and electrons balance each other out.
<u>Statement</u><u>:</u>
A ball is dropped from a height of 50 m.
<u>To </u><u>find </u><u>out:</u>
The velocity of the ball before touching the ground.
<u>Solution</u><u>:</u>
- Initial velocity (u) = 0 m/s [since the ball was at rest before it was dropped]
- Height (h) = 50 m
- Acceleration due to gravity (g) = 9.8 m/s²
- Let the velocity of the ball before touching the ground be v.
- We know, the equation of motion for a freely falling body, v² = u² + 2gh.
- Putting the values in the above equation, we get
- v² = [(0)² + 2(9.8)(50)] m/s
- or, v² = 980 m²/s²
- or, v = √980 m/s
- or, v = 31.3 m/s
<u>Answer</u><u>:</u>
The velocity of the ball before touching the ground is 31.3 m/s.
Hope you could understand.
If you have any query, feel free to ask.
As time goes on, members of a population with favorable traits continue to breed while those without these traits eventually die off. For instance, if all of the food in an area was high up in the trees, only members of the species with long necks are able to eat and continue to live and reproduce. Those with shorter necks will not be able to eat and will eventually die off. Over time, the species will evolve to have long necks.
Hope this helps!
Entropy and the second Law of Thermodynamics
Dissolving salt into water lowers the temperature which the water freezes, or at which the ice melts
Hope I helped! (: