Answer:
C. I'm pretty sure because I just took that test but I'm not sure
Answer:
41.2 m.
Explanation:
It takes half the time that is (5.8/2) = 2.9 seconds, for the ball to reach its apex.
Given:
S = 83 m
t = 5.8 s
vf = 0 m/s
a = - g
= - 9.81 m/s^2
Equations of motion:
i. vf = vi + a * t
ii. h = vi * t + 1/2 (a * t²)
Using the i. equation of motion:
0 m/s = vi - (9.8 m/s²) (2.9 sec)
vi = 28.4 m/s.
Using the ii. equation of motion:
h = (28.4 * 2.9 ) - 1/2 (9.8 * (2.9)²)
= 82.4 - 41.2
= 41.2 m.
You can thank me if this answer helps. The energy coal comes from energy that was stored in giant plants that lived hundreds of millions of years ago in swamp forests,even before dinosaurs!
Answer:
The temperature and the pressure both increase as we go deeper within the Earth, toward its core.
Explanation:
Answer:
Explanation:
Given
Speed of Primary wave
Speed of secondary wave
difference in timing of two waves are
Suppose both travel a distance of d km then
Subtract (ii) from (i)