Por favor necesito ayuda con esta tarea rápido tengo solo 20 minutos 1. Defina con sus propias palabras movimiento y caída libre.

2. Un objeto se deja caer desde una altura de 12 m. Determinar:

Las ecuaciones de movimiento.
El tiempo que tarde en caer el objeto.
Velocidad antes de tocar el suelo

3. Defina con sus propias palabras, que es el movimiento y la mecánica, de
ejemplo con ilustración..

Space vehicles traveling through earth's radiation belts can intercept a significant number of electrons. the resulting charge buildup can damage electronic components and disrupt operations. suppose a spherical metallic satellite 1.3 m in diameter accumulates 3.0 µc of charge in one orbital revolution. (a) find the resulting surface charge density. (b) calculate the magnitude of the electric field just outside the surface of the satellite, due to the surface charge.

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz