<span>The mechanical energy is conserved.
I hope this helps, good luck! :)</span>
Answer:
The automobile's acceleration in that time interval is -2 m/s^2
Explanation:
The acceleration is defined as the rate of change of the velocity.
The average acceleration in a given lapse of time is calculated as:
A = (final velocity - initial velocity)/time.
In this case, we have:
initial velocity = 31 m/s
final velocity = 15 m/s
time = 8 seconds.
Then the average acceleration is:
A = (15m/s - 31m/s)/8s = -2 m/s^2
The answer is C, because the water molecules are evaporating and the salt molecules are staying the same.
Answer: same
Explanation: They both weigh a kilogram and there is no friction
It's usually taken from <span>400 to 700 nm.</span>
