Las prótesis, válvulas del corazón, marca pasos, clavos en problemas de huesos quebrados, son productos que evolucionaron en materiales para ser más amigables con el cuerpo humano y que no causen rechazo y de esa manera contribuir a prolongar la vida de calidad de una persona, esta evolución se debe al desarrollo de nuevos materiales en el campo de los…

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2

wher is the rest of the question