Scientists conduct multiple trial experiments because one test might not be as reliable as multiple trials. Another reason they conduct multiple trials is because the scientific method says to conduct multiple experimental tests.
<span>The competitive exclusion principle states that when
two organisms attempt to fill the same niche, one will exclude the other from
the ecosystem. Research partitioning is an adaptive evolution that when species
are have similar preys, they compete with each other and one species is deemed
to extinct in the process however if two species are of different preys, then
they can exist with one another. To exist with one another, organisms belonging
to a same species either compete for the resources or divide it amongst
themselves. This concept is important because it helps in diversified ecology,
where animals and plants of the same species co-exist and creates a beauty with
nature.</span>
Answer:
2.572 m/s²
Explanation:
Convert the given initial velocity and final velocity rates to m/s:
- 65 km/h → 18.0556 m/s
- 35 km/h → 9.72222 m/s
The motorboat's displacement is 45 m during this time.
We are trying to find the acceleration of the boat.
We have the variables v₀, v, a, and Δx. Find the constant acceleration equation that contains all four of these variables.
Substitute the known values into the equation.
- (9.72222)² = (18.0556)² + 2a(45)
- 94.52156173 = 326.0046914 + 90a
- -231.4831296 = 90a
- a = -2.572
The magnitude of the boat's acceleration is |-2.572| = 2.572 m/s².
First we calculate the
effective radius R:
R = 1740+94 = 1834 km =
1.834E6 m
Then taking the mass of
the moon:<span>
M = mass of moon = 7.348E22 kg </span>
We then calculate the
period using the formula:<span>
<span>T = 2π√[R³/(GM)] = 7049.3 sec = 1.96 hr</span></span>
Answer:
D. the amount of water placed in jars
Explanation:
it was the same for all of the jars at the beginning
