Atoms can be seen with the naked eye.
Atoms do not have mass.
Atoms make up every substance around you.

Atoms make up every substance around you. True

Explanation:

Atoms can be seen with the naked eye. False because atoms are very very very sma

Atoms do not have mass. False, atoms do have mass although it is very sma as welll

Atoms make up every substance around you. True, similar to how cells make up different things like tissues, and tissues make organs and so on, atoms make up everything around us.

answer: your mm

explanation:

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