Answer:
Suggests that these are substitute goods
Explanation:
Demand cross elasticity measures the percentage change in the quantity demanded of a good given a percentage change in the price of another substitute good. Thus, the calculation of elasticity being 2, suggests that a percentage increase in the price of one store will increase the demand for products of the other store. In other words, a 1% increase in the price of one store will cause consumers to buy two units in the other store, replacing the store product whose price has increased.
Answer:
C) much of Western Europe was United under a single ruler
Explanation:
Charmalagne began his campaign to obtain new territories for his new kingdom in the late 700s.
His conquests were successful. As soon as he defeat foreign territories, he transform them into one of their own and placed the Men he trust to take care of the new territories. In early 800s, he managed to unite the majority of western and central Europe under his rule, put it under the a new banner, which later on called the Holy Roman Empire.
Answer:
b) electrons jump onto or off the neutral ball when a charged object comes close
Explanation:
What causes a pithball to move is when "electrons jump onto or off the neutral ball when a charged object comes close".
The pithball electroscope is actually used to test if a body is charged or not. When a charged body is brought near the pithball, the ball moves. The movement of that charged body reveal that there are electrons it is carrying.
The pithball can actually be charged. It is charged by touching a charged object to it. This leads to some of the charges on the surface of the charged object moving to the surface of the ball. The pith-ball electroscope was invented by John Canton, a British schoolmaster and physicist in 1754.
Answer:
neurotransmitter; receptor site
Like a key in a lock, the shape of the neurotransmitter must fit the receptor site to affect the postsynaptic neuron.
