Read the excerpt below and answer the question. I went inside then and in a moment he was gone. I watched him from my window as he went down the street. He was whistling softly and I waited until the sound faded away so I couldn't tell if it was he or my heart whistling out there in the night. And then he was gone, completely gone.
I shivered. Somehow the darkness seemed changed. The stars were little hard chips of light far up in the sky and the moon stared down with a sullen yellow glare. The air was tense with sudden cold and a gust of wind swirled his footprints into white oblivion. Everything was quiet.
But he'd said, "I'll call you." That's what he said—"I'll call you." I couldn't sleep all night.

This excerpt from Daly's "Sixteen" conveys a tone.

complacent
forlorn
gloomy
apprehensive

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 believe the answer is a.

the answer is c i believe

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.