Engineering, 18.03.2021 03:00 pumaben2864
En un experimento llevado acabo en el laboratorio de física , se utilizo un posicionador cuántico para mover a cualquier posición cargas puntuales. Utilizando esa herramienta se posicionaron dos cargas en el espacio, la primera, de 40 nC en la posición (3.0 m, 4.0 m, 0.0 m) y la segunda de -35 nC en la posición (-2.0 m, 3.0 m, 0.0 m). Posteriormente se le requiere que se mida el campo eléctrico generado en un punto (0.0 m, 5.0 m, 0.0 m) y brinde la dirección mediante un vector unitario.
Answers: 2
Engineering, 04.07.2019 18:10
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
Answers: 1
Engineering, 04.07.2019 19:10
In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?
Answers: 3
Engineering, 06.07.2019 02:30
An electric motor is used to drive a power press which makes steel turning moment diagrams 323 pressings from a metal sheet. the motor runs at a mean speed of 50 rev/s. the torque required is 10.0nm for 0.2s, followed by 1.0nm for0.3 s with this sequence then being repeated. what is the minimum power required of the motor and the moment of incrtia required for the t1ywhcel if the speed fluctuations are to be restricted to 1.5%?
Answers: 3
Engineering, 06.07.2019 03:10
Air is flows through an adiabatic nozzle with an inlet pressure of 400 psia at a temperature of 300°f and a velocity of 20 ft/s. the outlet pressure is 40 psia and the velocity is 800 ftl/s. determine the outlet temperature of the air using: a) property tables b) specific heat (using the specific heat value for air at 300°f)
Answers: 3
En un experimento llevado acabo en el laboratorio de física , se utilizo un posicionador cuántico pa...
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