las sillas voladoras de la figura tienen las siguientes dimensiones. La longitud L=12m y la distancia "a" 4m. ¿Cual tendria que ser la velocidad tangencial de la silla para que la cuerda forme un angulo de 30º con la vertical? (la silla gira en un circulo horizontal)

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

Ibelieve your answer is b.hope this : )

the simple machine has three main features. they are:

loadfulcrumeffort

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

The rearrangement of particles in a physical change. hope this