Answer:
a) t = 3.2 s
b) 
Explanation:
a) El tiempo requerido para llegar al suelo se puede calcular usando la siguiente fórmula:
En donde:
: es la altura inicial = 50 m
g: es la gravedad = 10 m/s²
Entonces, el tiempo requerido para llegar al suelo es 3.2 s.
b) La rapidez de la pelota justo antes del choque es el siguiente:
En donde:
: es la velocidad inicial = 0 (dado que se deja caer en resposo)
Por lo tanto, la rapidez de la pelota justo en el momento anterior del choque es -32 m/s (el signo negativo es porque la pelota está cayendo).
Espero que te sea de utilidad!
Answer:
The ratio of a distance through which any part of a machine moves to that which driving part moves during the same time.
Answer: The geological area is where rock is recycled by one tectonic plate sliding underneath another tectonic plate is C. Subduction zone.
Explanation:
A Rift Valley is a large elongated depression with steep walls formed by the downward displacement of a block of the Earth’s surface between nearly parallel faults or fault systems.
A strike-slip fault is a fault in which rock strata are displaced mainly in a horizantal direction, parallel to the line of the fault.
A divergent boundary is a linear feature in that exists between two tectonic plates that are moving swat from each other.
A subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced to sink due to high gravitational potential energy into the mantle. Regions where this process occurs add known as subduction zones.
so your answer is C.
Answer:
21.22s
Explanation:
initial velocity u=87m/s
acceleration a=-4.10 m/s²
velocity v=0
time t=?
From Newton's first law of motion
V=u+at
0=87-4.10t
-87=-4.1t
t= -87/-4.1
t= 21.22 s
We need it to calculate the how big it is, it’s mass, or even volume to get the measurements of lots of objects
