
Taller 8. Espol
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Physics
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11 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dado los vectores A= 2i + aj y B= 6i, el valor de a para que la magnitud de B sea igual a tres veces la magnitud de AxB es:
3
1/3
6
1/6
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sean los vectores: a = 5i - 2j + 3k y b = 2i + 5j + 6k. La proyección del vector a sobre el vector b es.
4.6
3.2
2.2
2.8
1.2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
De las siguientes magnitudes físicas. ¿ Cuál de ellas es fundamental?
Tiempo
rapidez
aceleración
Fuerza
Volumen
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cuántas Cifras significativas tiene la medición de 0.04560
6
5
4
3
2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dados los vectores
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál de los siguientes pares no son magnitudes vectoriales?
Rapidez y aceleración
Distancia y rapidez
Trabajo y potencia
Fuerza y desplazamiento
Masa y aceleración
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la gráfica adjunta se muestra la velocidad instantánea de un objeto que se mueve en línea recta. se puede asegurar que:
En el intervalo de 0 a 2s, el desplazamiento es negativo.
En el intervalo de 2 a 3s, se desplaza a 20m.
En el intervalo de 4 a 5s, se desplaza de manera negativa
En los dos primeros segundos el objeto se desplaza 30m.
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