<u>Examples of energy:</u> Nuclear, Fossil Fuels, Solar, Wind, Hydroelectric, Geothermal, Kinetic, Mechanical, Potential, and Chemical.
<u>Non-examples:</u> love, atoms, hatred, air, matter, ideas, socket, and batteries.
The practical examples i would suggest are:
Try pouring palm oil into a container when thick and when heated, when heated the viscosity is higher than when cooled
Try starting your car in winter and summer, during the winter the viscosity of the engine oil is very high making it difficult for the car to start but reverse is the case during summer
The car's velocity after 5s : 10 m/s
<h3>Further explanation</h3>
Given
velocity=v=72 km/h=20 m/s
time=t = 5 s
acceleration=a = -2 m/s²
Required
velocity after 5s
Solution
Straight motion changes with constant acceleration
vf=final velocity
vi = initial velocity
Input the value :
The car is decelerating (acceleration is negative) so that its speed decreases
I think the correct answer would be C. The common characteristic that is shareed by the elements found at the center of a period would be that they are the least reactive species. Having lower value of electronegativity, there is less ionization of the atoms which would also contribute to less reactivity.
