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Nikolay [14]
3 years ago
15

URGENTE ¿Cuál de los siguientes términos corresponde al concepto presión? * A. Es la fuerza perpendicular que ejerce un cuerpo s

obre un volumen. B. Es la fuerza que ejerce perpendicularmente sobre la masa de un cuerpo. C. Es el área que se ejerce en forma perpendicular sobre un cuerpo para generar fuerza. D. Es la fuerza que un cuerpo ejerce perpendicularmente sobre el área en la que actúa.
Physics
1 answer:
melomori [17]3 years ago
6 0

Answer:

Respuesta correcta, opción D: Es la fuerza que un cuerpo ejerce perpendicularmente sobre el área en la que actúa.

Explanation:

La definición de presión es la fuerza que un cuerpo ejerce en dirección perpendicular sobre el área en la que actúa.

Cuando se aplica una fuerza sobre la superficie de un cuerpo, la presión es la siguiente:

P = \frac{F}{A}

En donde:

F es la fuerza aplicada.

A es el área del cuerpo.  

Por lo tanto la opción correcta es la D: es la fuerza que un cuerpo ejerce perpendicularmente sobre el área en la que actúa.

Espero que se sea de utilidad!      

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The A 400 kg spacecraft has a momentum of 30,000 kg·m/s up. What is the velocity? A. 12,000,000 m/s B. 1200 m/s C. 300 m/s D. 75
tia_tia [17]
Momentum of an object is calculated by multiplying the mass by the velocity. 

p = mv 
where:
p = momentum
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Let's take your given into account and put it in the equation:

p = mv
30,000 kg.m/s = (400kg)v

Velocity is our unknown, so to get it all we need to do is transfer mass (m) to the other side of the equation and isolate the velocity (v). When we do this, we need to use the opposite operation (rules of transposition). 

(30,000kg.m/s)/(400kg) = v

Cancel out the kg and you are left with m/s.

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8 0
3 years ago
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OLga [1]

Answer: d constint speed

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A sledge hammer has a mass of 4.0 kg and is moving at a speed of 6.0m/s when it strikes a fence post, driving it 10 cm further i
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Part a)

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OlgaM077 [116]
<span>translational kinetic energy is larger than its rotational kinetic energy</span>
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