Answer: C. 39 s
Explanation:
We know the constant speed is 0.22 m/s. We have to get to 8.5 m. We divide <u>8.5 m by 0.22</u> = 38.6. After we estimate, 6 is greater than 5, so 39 s.
Answer:
A crab lives in the intertidal zone.
A crab spends most of its time scavenging for food in the sand.
Explanation:
These tell us where a crab lives and where/how it feeds.
"A crab has an exoskeleton." is a true statement about the characteristics of a crab, but tells us nothing of its interaction with the environment so is not niche.
"A crab will avoid predators by quickly moving underneath an object to hide."
is a true statement, but is too general to identify a niche. Could be modified to cover niche if it said something like "A crab will avoid predators by quickly moving underneath an abandoned seashell or a coral rock to hide."
Answer:
Explanation:
First, it is required to model the function that models the increasing force in the +x direction:
The equation is:
The impulse done by the engine is given by the following integral:
The gap between the two flasks is partially evacuated of air creating a near vacuum which significantly reduces heat transfer by conduction or convection