Several systems and processes are described below. For each of them, determine whether the system is at steady state, at equilibrium, or neither. Determine also whether any of these adjectives are applicable to the system: isothermal, isobaric, isochoric, adiabatic, closed, or open. a. An ice cube that has just been dropped into a glass of warm water. b. An aluminum can full of soda that has been fully submerged in ice water for some time. c. The inside of a closed, perfectly insulated cooler that contains ice, water, and cans of soda. d. A closed, reasonably well insulated cooler that contains ice, water, and cans of soda. e. Your body, over the last 24 hours. f. Your body, over the last five years. g. The Atlantic Ocean, over the last 24 hours. h. The Atlantic Ocean, over the last million years.

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

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101