Un automóvil que viajaba a 12 m/s a lo largo de un camino recto y cambia su velocidad a 35 m/s en 5 segundos ¿Cuál es el valor de la aceleración?

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?