Dos placas metálicas se mantienen unidas por 5 remaches de aluminio de 0,600 cm de diámetro. Si las placas ejercen una fuerza total de 208 kN que se distribuye equitativamente, calcule el ángulo de inclinación que sufrirá cada remache.
a)1,26º
b)0,38º
c)0,06º
d)3,37º

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.