The answer is 3.17647059 hours
Answer:
In the lab activity, I used a virtual watershed to demonstrate how pollutants enter and flow through the watershed. I constructed food chains to show how biotic factors are related. I also predicted and modeled how human activity affected the biotic factors in an ecosystem. Based on my observations, I can conclude that biotic and abiotic factors are closely linked and that human activity that changes the environment, like pollution, can affect all the other parts of an ecosystem in a negative way.
Explanation:
Answer:
The coefficient of static friction between the book and the vertical back of the wagon is
Explanation:
Since the book is pressed against the vertical side of the wagon, the weight of the book will be acting downwards. i.e.
Let the frictional force between the book and the vertical back of the wagon be
For the book not to drop down from the back vertical side of the wagon,
........................(1)
A static frictional force is given as ............(2)
where N= Normal Reaction
Equating (1) and (2)
Answer:
4.2 rad/s²
Explanation:
Given:
ω₀ = 3.2π rad/s
ω = 8.8π rad/s
t = 4.2 s
Find: α
ω = αt + ω₀
8.8π rad/s = α (4.2 s) + 3.2π rad/s
α = 4.2 rad/s²
Answer:
Explanation:
We have series and parallel combination of two resisters and .
Series combination is
and Parallel is
Now dividing series equivalent resistance by parallel resistance gives us
.
Note! series Combination is simply superposition of two elements (resisters in this case ) in a circuit.