Answer:
I believe that they all produce carbon dioxide and all come from the ground. I dont know any differences about all so sorry.
Explanation:
Answer:
Explanation:
height fallen = h , initial speed u = 0
time t = 2.4s
h = 1/2 x gt²
= .5 x 9.8 x 2.4²
= 28.22 m
Speed of striking the ground
v = gt
= 9.8 x 2.4
= 23.52 m/s
A ) When rock is thrown upwards
initial velocity u = - 19 m/s
g = 9.8 m/s²
h = ut + 1/2 gt²
50 = - 19t + .5 x 9.8 t²
4.9 t² - 19 t - 50 = 0
=5.7 s
B )
V = - -u+gt
= - 19 + 9.8 x 5.7
= 36.86 m/s
Answer:
1. 0.574 kJ/kg
2. 315.7 MW
Explanation:
1. The mechanical energy per unit mass of the river is given by:
Where:
Ek is the kinetic energy
Ep is the potential energy
v is the speed of the river = 3 m/s
g is the gravity = 9.81 m/s²
h is the height = 58 m
Hence, the total mechanical energy of the river is 0.574 kJ/kg.
2. The power generation potential on the river is:
Therefore, the power generation potential of the entire river is 315.7 MW.
I hope it helps you!
Answer:
“Speed” is the magnitude of the velocity vector. It is part that quantifies the distance traveled per unit time. “Acceleration” is the change in the velocity vector.
Explanation:
Hope this helps!!
2. Centripetal Acceleration
3. Negative Acceleration.
4. Positive Acceleration.
Use the Quizlet provided below:
https://quizlet.com/223675738/unit-1-lesson-1-lesson-2-review-flash-cards/