What is the question looking for?
Answer:
False
Explanation:
As technology advances and new evidence is found which either contradicts or supports accepted scientific principles, the principles are susceptible to change.
An apple has the ability to change color when exposed to air is a chemical property.
Answer: The engine size
Explanation:
Explanatory variable is a type of independent variable, but it may not always be independent. It is varied to determine its effect on the response variable. In this case, to establish a relationship between gas mileage of cars and the engine size, one will want to predict the average gas mileage for various engine size. Therefore, the engine size is the explanatory variable while the gas mileage is the response variable.
Answer:
123 km/h
Explanation:
The distance between the Jeep Wrangler and the Ford Taurus is increasing.
Let us consider the north direction as positive when observing from the ground
So, the south direction will be negative
But when the observer is one of the cars the direction will be the same i.e., moving away from each other, so the velocity will be added.
Hence velocity of the Jeep relative to the Ford will be
Velocity of the Jeep + Velocity of the Ford
= 74+49 = 123 km/h
∴ Velocity of the Jeep relative to an observer in the Ford is 123 km/h