Answer:
A. External
Explanation:
External stimulus includes touch/pain, vision, smell, taste, and sound.
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 push air and perfume out of the tube, creating a small vaccum that pulls more perfume into the tube
Oxygen. Plants need water sunlight and CO2 to make their food. They get the carbon and the energy from the CO2 and the sun, and they need water as well. Then they release oxygen
The net force on the cart is
Force = (mass) x (acceleration) .
We know the mass = 1.5 kilogram, but we need to
calculate the acceleration.
Acceleration = (change in speed) / (time for the change)
Change in speed = (ending speed) minus (beginning speed)
= ( 0 ) - ( 2 m/s ) = -2 m/s
Acceleration = (change in speed) / (time for the change)
= ( -2 m/s ) / (3 sec)
= - 2/3 m/s² .
Finally ... Net force = (mass) x (acceleration)
= (1.5 kilogram) x ( - 2/3 m/s²)
= ( - 3/2 x 2/3 ) (kg-m/s²)
= - 1 newton .
The negative sign on the force means the force is applied
opposite to the direction the cart is moving. That gives
negative acceleration (slowing down), and the cart
eventually stops.
