Answer:
F = 30 N Directed up
Explanation:
We can solve this problem using the momentum and momentum relationship.
I = ΔP
I = ∫ F dt
As we are asked for the average force, that leaves the integral, giving
I = F t
F t = m - m v₀
F = m (-v₀) / t
Note that, if you define the upward positive direction, the initial velocity is negative
Let's calculate
F = 0.15 (3.5 - (-6.5)) / 0.050
F = 30 N
Directed up
I think most likely the answer is the first one. meeting other students. if not then maybe the second one, highly motivated.
Given what we know, we can confirm that the letter V is often used to describe the typical shape of a mountain valley, while stream bank and stream bed described the side and bottom of a stream respectively.
<h3>What terms do we use to described streams?</h3>
As shown in the question, there are many ways to describe the different parts of a stream. The side of the stream is referred to as the bank of the stream, along its entire length, while the stream bed is a term used to describe the bottom.
Therefore, we can confirm that the letter V is often used to describe the typical shape of a mountain valley, while stream bank and stream bed described the side and bottom of a stream respectively.
To learn more about streams visit:
brainly.com/question/3477759?referrer=searchResults
Answer:
1000/second
Explanation:
A nerve impulse is rise or fall of membrane potential in a certain region of a cell.
One nerve impulse lasts for 1 ms which is 10⁻³ seconds.
In the question it is given that one nerve impulse begins after one nerve impulse ends.
In 1 second there are 1000 ms.
So, the neuron firing rate would be 1000/second. This means that a nerve impulse will fire a thousand times each second.
low friction between his skis and the snow.