Para asegurar un ajuste perfecto, los remaches de aluminio usados en los aviones se fabrican ligeramente más gruesos que los orificios y se los enfría con hielo seco (CO2sólido) antes de ser introducidos en los orificios. Si el diámetro de un orificio es de 20 mm . Cuál debe ser el diámetro del remache a 20 ºC para que su diámetro sea igual al orificio cuando se enfría a -78 ºC que es la temperatura del hielo seco. coef. del aluminio= 24x10-6ºC-1.

6/12=1/2

step-by-step explanation:

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west