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miss Akunina [59]
4 years ago
7

How can you use ecozone in a sentence?

Physics
1 answer:
beks73 [17]4 years ago
5 0
A large geographical region having a distinct biodiversity<span> of </span>flora<span> and </span>fauna.<span>

</span>
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Se lanza desde el suelo verticalmente hacia arriba un objeto con una velocidad inicial de 20 m/s. Calcula: a)Posición y velocida
djverab [1.8K]

Answer:

Ver las respuestas a continuacion.

Explanation:

Para solucionar este tipo de problemas debemos de utilizar la siguiente ecuacion de la cinematica.

a)

v_{f}=v_{o}-g*t

Donde:

Vf = velocidad final [m/s]

Vo = velocidad inicial = 20 [m/s]

g = aceleración gravitacional = 9.81 [m/s²]

t = tiempo = 1 [s]

El signo negativo de la aceleración gravitacional significa que el objeto se mueve en dirección contraria a la aceleración gravitacional.

v_{f}=20-9.81*(1)\\v_{f}=10.19[m/s]

b)

La altura máxima se logra cuando la velocidad final es cero, es decir no existe movimiento alguno para que siga subiendo el objeto. Debemos utilizar la siguiente ecuación de la cinemática.

v_{f}^{2} =v_{o}^{2}-2*g*y

Donde:

y = elevación [m]

0 = 20^{2} -2*9.81*y\\19.62*y=400\\y=20.38 [m]

c)

Podemos calcular el tiempo máximo que toma el objeto en subir.

v_{f}=v_{o}-g*t

0 = 20 -9.81*t\\9.81*t=20\\t=2.04[s]

Ahora del numeral b) sabemos la distancia maxima, de esta manera y utilizando la siguiente ecuacion podemos calcular el tiempo de caida, Debemos tener en cuenta que ahora la velocidad final es igual a la velocidad inicial = 0.

y=y_{o}+v_{o}*t+\frac{1}{2}*g*t^{2}

20.38 = 0*t + 0.5*9.81*t^{2} \\20.38 = 4.905*t^{2}\\t=\sqrt{\frac{20.38}{4.905} } \\t=2.04[s]

Entonces el tiempo total es igual a:

t = 2.04 + 2.04

t = 4.076 [s]

4 0
3 years ago
If an object is in ________, then the object will stay in _____because the object has inertia.
Tju [1.3M]

Answer:

Your answer is motion.

Explanation: This statement is one of Newton's four laws of motion.

7 0
4 years ago
a wave is represented by the equation y=0.5 sin0.6×(x-60t) where the distance x is measured in cm and time t is seconds. what is
Grace [21]

Answer:

lamda=10.5m

Explanation:

using the equation of progressive wave.

y=Asin(wt-kx)

comparing the two equations together, we have

kx=0.6x , k=0.6

k=2π/λ

0.6=2*3.142/λ

cross multiply

0.6λ=6.284

divide both sides by 0.6

λ=6.284/0.6

λ=10.47m

approximate

λ=10.5m

5 0
3 years ago
How can you use the movement of molecules to determine when a phase change has occurred?
baherus [9]

Answer:

These energy exchanges are not changes in kinetic energy. They are changes in bonding energy between the molecules. If heat is coming into a substance during a phase change, then this energy is used to break the bonds between the molecules of the substance. The example we will use here is ice melting into water.

Explanation:

5 0
3 years ago
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DNA is composed of subunits called nucleotides. What are the 3 parts of a nucleotide?
qaws [65]

Explanation:

1) Nitrogenous base

2) Pentose sugar

3) One or more phosphate group

3 0
3 years ago
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