Answer:
The correct answer is: A. salt
Explanation:
The salt corresponds to sodium chloride, whose chemical formula is NaCl. A compound is defined as that substance formed by a combination of 2 or more atoms.
Potencial Energy=hma
Where
Potencial Energy =E= 54.9J
h=?
m=8kg
a=9.8m/s^2
You need to know that 1 J=1(kgm^2)/s^2
Isolate h=E/(ma)
h=(54.9)/(8*9.8)
Answer:
P = 16,000 kgm/s
Explanation:
<u><em>Given :</em></u>
Mass = m = 800 kg
Velocity = v = 72 km/hr = 20 m/s
<u><em>Required :</em></u>
Momentum = P = ?
<u><em>Formula:</em></u>
P = mv
<u><em>Solution:</em></u>
P = (800)(20)
P = 16,000 kgm/s