6.- Un cuerpo de 30 Kg lleva rapidez de 20mts/seg y se le aplica una fuerza constante de 30 Nw durante 80 seg. Calcular: - La aceleración
- La rapidez al cabo de 6 seg.
- La distancia recorrida en los 6 seg.

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

What are the factors that affect the resistance of a wire?