2. Motivation is the internal desire
Answer:
The correct answer is B
Explanation:
The moment of an object is the product of its mass by velocity, it is described by the equation
p = mv
In this problem they give us the most body and speeds before and after the crash. We must define an environment with both bodies so that the forces during the crash have been internalized and the moment is preserved
Δp = pf -p₀
Δp = m
- m v₀
Δp = 2 9 -2 1.5
ΔP = 14.8 m/s
The correct answer is b
<h2>
Answer:Displacement</h2>
Explanation:
Potential energy is present in a spring because the spring is elongated and some work is done it to elongate it.
The elastic potential energy present in a spring is given by 
where
is the spring constant.It may vary from spring to spring and
is the displacement of the spring from its equalibrium position.
It is evident from the equation that potential energy in the spring increases as
increases.
Answer:
C: Smoke rises out of very hot substances
Explanation:
Edge
Answer:
No
Explanation:
Recall that the hierarchy of wavelength color from minimum wavelength to maximum wavelength is:
and

As a result, blue light has a higher energy level than green and red light.
As a result, the surface glows due to the blue LED. The green LED, on the other hand, would not allow the surface to glow as much as the red LED, which has a lower energy level when compared to the green light. As a result, the red LED would not allow the surface to glow as well.