:) . i need this to be reworde because i don't like it lol will give brainliest and points and more! many every day activities lead to global warming because they produce pollution. when gas is burned in a car, it produces carbon dioxide, a greenhouse gas. it floats up towards the atmosphere, and becomes the atmosphere. this causes the hat from the sun to get trapped, bouncing from the earth to the atmosphere. the sun doesn't stop producing heat, so the world gets hotter, causing many changes in temperature each decade that goes by.

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