Answer:
La velocidad media es 5 
, que equivale a 1.389 
Explanation:
La velocidad es una magnitud física que expresa la relación entre el espacio recorrido por un objeto y el tiempo empleado para ello.
La velocidad media relaciona el cambio de la posición con el tiempo empleado en efectuar dicho cambio. Por lo que se calcula como la distancia recorrida por un objeto dividido por el tiempo transcurrido:
En este caso:
- distancia= 10 km= 10,000 m (siendo 1 km= 1,000 m)
- tiempo= 2 h= 7,200 s (siendo 1 h= 3,600 s)
Entonces, reemplazando en la definición de velocidad media:
Resolviendo se obtiene:
<u><em>La velocidad media es 5 </em></u><u><em>, que equivale a 1.389 </em></u><u><em></em></u>
U use the train to play hope i helped please thank me
Red light reflects off the card into your eyes and you see the red card as red. The light will just make the card brighter. So A
I believe that it is d correct me if wrong because the higher the temperature the more active the molecules are gonna be, but the graph does not explicitly state that, so you can say the answer is d (if not the answer is c) (sorry if wrong)
Answer:
t = 4 t₁ , We see that time is increased by a factor of 4
Explanation:
For this exercise let's use the concepts of kinematics
v² = v₀² + 2 a d
With the first pad when the package stopped zero speed, let's look for acceleration
0 = v₀² - 2 a₁ d
a₁ = v₀² / 2 d
Let's use the equation to enter time
v = v₀ - a₁ t₁
t₁ = v₀ / a₁
When we replace the pad with another one where the distance is 4d
a = v₀² / 2 (4d)
a = a₁ / 4
We see that the acceleration is 4 times lower.
The equation kinematics
v = v₀ - at
t = v₀ / a
We replace the acceleration
t = v₀ 4/a1
t = t₁ 4
We see that time is increased by a factor of 4
