One of the most important aspects of civilization is communication.
People need one another, and in order for them to communicate and understand one another, they must be able to understand one another. The communication cycle explains how the mechanism of message transmission and comprehension works.
Although different cycles may have slightly varied phases and descriptions, the fundamental components are often the same:
Sender: the sender of communication is a person or an organization.
Message: The details the sender wants to share
Encoding is the process the sender uses to transform the message into one that can be sent.
The channel is the method used to send the message.
recipient: the individual or thing to whom the communication is
Decoding: How the communication is interpreted and comprehended by the recipient
Feedback: the reaction of the recipient
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The block with the bullet lodged in the block is now travelling at 2.133 m/s.
<h3>What is momentum conservation principle?</h3>
When there is no external force acting on the system, the momentum remains conserved.
For inelastic collision, after collision both objects travel with common speed.
m1u1 + m2u2 =(m1 +m2)v
Substitute initial velocity of bullet u1 =320 m/s , initial velocity of block u2 =0, mass of bullet m1 = 0.1 kg and mass of block m2 = 14.9 kg.
Solve for the final velocity of bullet,
0.1 x 320 + 14.9 x 0 = (0.1 +14.9) x v
v = 2.133 m/s
Thus, the block with the bullet lodged in block now travelling at 2.133 m/s.
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Answer:
0.0136
Explanation:
For the series connection
Effective resistance= 6 + 12= 18 ohm
Current= 6/18=0.33 A
Heat= I^2R= 0.33^2 × 18= 1.96 J
For parrallel
Effective resistance= 6^- 1+12^-1 = 0.167 + 0.083= 0.25 ohm
Current= 6/0.25= 24 A
Heat= 24^2 × 0.25=144J
Ratio of series to parallel= 1.96/144=0.0136
Answer:
a) El remolque desciende 7.4 cm
b) La carga debe ser de 15715.6 N ó 1603.6 kg
Explanation:
Para los cálculos que involucren muelles, se aplica la Ley de Hooke, la cual relaciona el efecto de una Fuerza y el cambio de longitud que esta ejerce, en un resorte de elasticidad dada.
Escrito en fórmula:
Donde:
F es la fuerza ejercida
k es la constante elástica del muelle
ΔL es la variación de longitud del muelle
El problema indica que al cargar 2100 kg se ejerce una fuerza de 20580 N
Esto se corrobora con la 2da ley de Newton y asumiendo una aceleración de gravedad de 9.8
Esta fuerza comprime o reduce la longitud del muelle en 5.5 cm. Usando estos datos en la Ley de Hooke, podemos obtener la constante elástica k:
Ahora ya tenemos los datos para resolver las preguntas:
- a) <em>Longitud que desciende el remolque si se carga con 28000 N</em>
Aplicando directamente la formula de la Ley de Hooke:
- b) <em>Si ha descendido 4,2 cm la carga</em>
En este caso debemos calcular la fuerza necesaria que haga descender el remolque 4.2cm. Nuevamente utilizando la Ley de Hooke con estos nuevos datos:
Si queremos saber la carga en kilogramos: