Answer:
government - power to make treaties and declare war
state- the other 2
Explanation:
i just did this (guessed) and got it right!!
Certain metals such as steel,aluminium follow sustainable methods but some does not.
Explanation:
Metal production means conversion of a raw material, such as a metallic ore, to a final form which can be used for some commercial or industrial purpose. In some cases, metal production gives few steps since the metal already occurs in an elemental form in nature.
Sustainable manufacturing is the creation of manufactured products through economic processes that minimize negative environmental impacts while conserving energy and natural resources.
Steel is a uniquely sustainable material because Steel is truly recyclable and is truly recycled.
Aluminum poses no danger of environmental toxicity therefore, secondary aluminum production from recycling scrap has the potential to significantly reduce greenhouse gas emissions.
But some metals production does not follow subsequent methods.
Car is driven first 2.0 hour at the velocity 40 km/h.
We know,
Distance covered = Velocity * time.
Therefore, distance covered by car in first two hours = 40 * 2.0 = 80 km.
Car is driven second 2.0 hour at the velocity 60 km/h.
Therefore, distance covered by car in first two hours = 60 * 2.0 = 120 km.
Total distnace covered = 80 km + 120 km =200 km.
Total time taken = 2.0 + 2.0 = 4.0 hours.
Average velocity =
Plugging values in above formula, we get
= 50 km/h
Therefore, average velocity is 50 km/h.
Explanation:
The momentum of an object is given by :
............(1)
m is the mas of the object
v is the speed of the object
According to question, arrow's mass is doubled and the speed is halved. So,
m' = 2m
v' = v/2
The new momentum becomes :
p' = mv
p' = p
So, the momentum remains the same. The momentum is changed by a factor of 1. Hence, this is the required solution.