Answer:
Time taken t = 4.167 seconds (Approx)
Explanation:
Given:
Initial Speed u = 12 m/s
Final speed v = 0 m/s
Acceleration a = -50 m/s²
Find:
Time taken t
Computation:
v = u + at
0 = 12 + (-50)t
t = 4.167 s
Time taken t = 4.167 seconds (Approx)
Elements emit colours when heated because electrons in atoms can have only certain allowed energies.Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light. Every element has a different number of electrons and a different set of energy levels. Thus, each element emits its own set of colours. See, for example, mercury and neon above. Those colours are as distinctive to each element as fingerprints are to people.
Your answer is is simply <span>Piaget</span>
Https://www.tamaqua.k12.pa.us/cms/lib07/PA01000119/Centricity/Domain/119/TheAgeofImperialism.pdf
<span>Left
1.The country is hit by a
natural disaster that
destroys its infrastructure.
</span><span>2.There is an acute shortage
of teachers in several of the
country’s states.
Right
</span><span>1.The government starts 50
new medical clinics in rural
areas.
</span><span>2.Seven computer hardware
companies set up new
manufacturing units in the
country.</span>
