False because the allocation rule of "first come-first served" promotes productive cooperation.
Answer:
<em>The acceleration of the racecar is</em> 
Explanation:
<u>Uniformly Accelerated Motion</u>
It's a type of motion in which the velocity of an object changes by an equal amount in every equal period of time.
Following the definition above, the acceleration is defined as:
Where a is the constant acceleration, vo the initial speed, vf the final speed, and t the time.
The racecar goes from vo=18.5 m/s to vf=46.1 m/s in t=2.47 seconds, thus the acceleration is:
The acceleration of the racecar is
Answer:30 cm
Explanation:
Given
object distance 
focal length of concave mirror 
height of object 
Using mirror formula
and magnification is
So height of object is same as of object .
Position :image is formed at the spot where object is placed.
The mechanical advantage of the forklift is calculated to be 4.
<h3>MECHANICAL ADVANTAGE:</h3>
- The mechanical advantage of a machine can be calculated by dividing the load (F) by effort (F). That is;
M.A = Load/Effort
- According to this question, a crate required 900 newtons (N) of force to lift. The crate was lifted by a forklift with an engine that provided 225 N of force. The mechanical advantage is calculated as follows:
M.A = 900N ÷ 225N
M.A = 4.
Therefore, the mechanical advantage of the forklift is calculated to be 4.
Learn more about mechanical advantage at: brainly.com/question/10221970
Melatonin is a hormone being produced by small gland in the brain called pineal
gland that helps control sleep and wake cycles. It is also called the sleep
hormone because it gives signal that it’s time to sleep. People
also used this hormone to adjust the body’s internal clock. It is the hormone
that released in response to exposure to sunlight. When the sun sets and night
falls, the pineal is activated and begins to vigorously produce melatonin. The
amount of melatonin tends to rise as night falls, peaks at midnight, and falls
again as the sun rises. It means that it produced more when darker and when the
lighter it is; the less melatonin is produced.
