
Examen diagnóstico avanzado
Quiz
•
Engineering
•
University
•
Hard
Eli Agaliotis
FREE Resource
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un bloque de 0,5 m³ de volumen y masa 400 kg se coloca en agua ($\rho = 1000$ kg/m³). ¿Flotará y cuánto volumen estará sumergido?
Flota; 0,4 m³ sumergido
Flota; 0,5 m³ sumergido
Se hunde totalmente
Flota; 0,25 m³ sumergido
Flota; 0,2 m³ sumergido
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un líquido con densidad $1200$ kg/m³ está a 3 m de profundidad. La presión hidrostática adicional respecto a la superficie es (g=9,81 m/s²):
36 kPa
29,4 kPa
35,3 kPa
39 kPa
33,6 kPa
3.
OPEN ENDED QUESTION
3 mins • 1 pt
Calcule la derivada de la función f(x,y,z) = x²yz + e^(xy) + ln(z) con respecto a cada variable. Luego evalúe ∇²f (el laplaciano).
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un tanque recibe agua a 2 kg/s y se vacía a 1,5 kg/s. ¿Cuál es el incremento de masa en el tanque?
0,5 kg/s
3,5 kg/s
2 kg/s
1,5 kg/s
0 kg/s
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si $f(x) = 3x^4 - 5x^2 + 2$, la derivada $f'(x)$ es:
$12x^3 - 10x$
$12x^3 + 10x$
$3x^3 - 10x$
$12x^4 - 10x$
$12x^3 - 5x$
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La ecuación $\frac{dy}{dx} + 3y = 6$ tiene solución general:
$y = Ce^{-3x} + 2$
$y = Ce^{3x} + 2$
$y = 6x + C$
$y = 2x + Ce^{-3x}$
$y = Ce^{-x} + 6$
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un objeto de 5 kg se eleva 4 m con velocidad constante. El trabajo realizado por la fuerza que lo eleva es:
20 J
200 J
100 J
196 J
400 J
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