Answer:
The superball cannot rebound to a higher height than its original height because that would go against the laws of energy conservation. For it to bounce higher than its original height, that means the potential energy acting on it is higher than the one it had been dropped with originally, and that energy must be an external one. However, it should be noted that if the superball is thrown downwards with an extra energy, then it can rebound higher than the original height.
Explanation:
Answer:
A - elastic since many other fast food items could be considered close substitutes.
Explanation:
The price elasticity of demand is how much the demand of the Big Macs will change due to a 1% change in price. Should the elasticity be greater than 1, the Big Macs will be elastic. Should it be less than 1, the Big Macs are inelastic.
Demand elasticity is calculated as the percentage change in quantity demanded divided by a percentage change in price.
Since Big Macs are (i) a luxury good, and (ii) have close substitutes (other burgers available at McDonalds and other fast food stores), we will say their elasticity is greater than 1.
This means that the demand of Big Macs will change due to a 1% increase in price due to the presence of close substitutes.
<span>Sir Isaac Newton discovered the forces of gravity
Hope this helps :)
If it did can you award brainliest</span>
Answer:
Using wood also helps keep carbon out of the atmosphere, helping to mitigate climate change.
Deforestation.
Explanation:
Trees store carbon dioxide as they grow. After harvest, wood products continue to store much of this carbon. These benefits continue when wood is reclaimed to manufacture other products.
Extraction of wood within the supply areas clearly affects the forest and the environment. Some of these impacts can be seen in the study areas. The rainfall is increasingly irregular, biodiversity has been lost. Communities have experienced flooding and drought, which adversely affects the most important sector in the country's economy, that of agriculture. The local populations are concerned about these impacts, which affect not only the environment but the whole social economy.
Answer:
21.375 J
21.375 J
3.49489 m/s
21.375 J
0.62254 m
Explanation:
k = Spring constant = 1900 N/m
x = Displacement of spring = 15 cm
g = Acceleration due to gravity = 9.81 m/s²
m = Mass of block = 3.5 kg
Potential energy is given by
The potential energy of the spring is 21.375 J
As the energy in the system is conserved we get the kinetic and potential energy are equal
The velocity of block is 3.49489 m/s
Again, as the energy of the system is conserved
The gravitational potential energy is 21.375 J
The height the block will reach is 0.62254 m