Answer:
What is the elapsed time for Trial B? - 3.0
What is the average speed for Trial B? - 1.3
Explanation:
Answer:
22.27 m
Explanation:
initial velocity, u = 25 m/s
Angle of projection, θ = 45°
height, h = 30 m
Let t be the time taken to reach the ground.
use second equation of motion in vertical direction
t = 1.26 second
The horizontal distance = horizontal velocity x time
d = 25 Cos 45 x 1.26 = 22.27 m
Answer:
Lower pitch and longer wavelength
Explanation:
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.