Answer: A device records the time it takes sound waves to travel from the surface to the ocean floor and back again. Sound waves travel through water at a known speed. Once scientists know the travel time of the wave, they can calculate the distance to the ocean floor.
Explanation:
<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:
Explanation:
Given:
height above the horizontal form where the ball is hit, 
angle of projectile above the horizontal, 
initial speed of the projectile, 
<u>Firstly we find the </u><u>vertical component of the initial velocity</u><u>:</u>
During the course of ascend in height of the ball when it reaches the maximum height then its vertical component of the velocity becomes zero.
So final vertical velocity during the course of ascend:
Using eq. of motion:
(-ve sign means that the direction of velocity is opposite to the direction of acceleration)
(from the height where it is thrown)
<u>Now we find the time taken to ascend to this height:</u>
<u>Time taken to descent the total height:</u>
- we've total height,
- during the course of descend its initial vertical velocity is zero because it is at the top height, so
<u>Now the total time taken by the ball to hit the ground:</u>
The final speed of the electron is 4.64 * 10^5 m/s.
<h3>What is the speed of the electron?</h3>
Given that the mass of the electron is obtained as 9.11 * 10^-31 Kg, we have that the charge of the electron is 1.6 * 10^-19 C.
E= F/q
F = Eq
F = 330 N/C * 1.6 * 10^-19 C
F = 5.28 * 10^-17 N
F = ma
a = F/m = 5.28 * 10^-17 N/ 9.11 * 10^-31 Kg
a = 5.8 * 10^13 m/s^2
Using
v = u + at
u = 0 m/s because the electron was initially at rest
v = at
v = 5.8 * 10^13 * 8.00 ✕ 10−⁹ s
v = 4.64 * 10^5 m/s
Learn more about the speed of the electron:brainly.com/question/13130380
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Using the equation:
Energy transferred = Charge x Potential difference
Rearrange for p.d:
V = E/Q
Substitute values:
V = 80/20
V = 4
