¿Cuál de las siguientes afirmaciones es falsa? a) La rapidez es una magnitud escalar.
b) El desplazamiento es una magnitud escalar.
c) La aceleración es una magnitud vectorial
d) El tiempo es una magnitud escalar.
e) La velocidad es una magnitud vectorial.

How would you place two electrons on a sphere of radius r so that the electrostatic potential energy is minimized. how would you place three electrons to solve the same problem.

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)

Can anyone plz answer any of these. even if its one it will