What is true about the latent heat of condensation for a substance?

Select all that apply.

The latent heat of condensation is a characteristic property that can be used to identify a substance.

The latent heat of condensation will have the same absolute value as the latent heat of vaporization.

The latent heat of condensation will be positive.

The latent heat of condensation will have the same absolute value as the latent heat of solidification.

The latent heat of condensation will be negative.

The latent heat of condensation is the same for all substances under the same conditions.

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

i wish i could but this one is weird give me abc and i can solve it.

може ли да зареждате повече информация, моля