How high must a sack of sugar weighing 10 kg be lifted to have 58 J of potential energy? (Hint: Derive the formula of PE-mgh to get the formula for height. Divide both sides by the variable/s adjacent to height (h) to get h=PE/mg)
G : 58J (PE) and 10 kg (mass)
E : h = PE/mg
S : 58J/(10kg)(9.8/2)
A : 58/59 = [ 0.59 m ]

If a bicycle with a velocity of 17.89 has kinetic energy of 5000 J. What is the mass of the bicycie? (Hint: Derive the formula of KE my to get the formula for mass. Divide both sides by the variable/s adjacent to the mass (h) to get m=KEEP/(0.5)(v²)
G : v = 17.89 m/s
KE = 5000J
E : m = KE/0.5v²
S : m = KE/0.5v²
= 5000J/(0.5)(17.89 m/s²)
= 5000J/160.02605 m²/s²
= 31.2449 kg
A : m = [ 31 kg ]
<em>Hope </em><em>it's</em><em> Help</em>
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<span>During World War II, the US Navy needed to train large numbers of new troops. This was accomplished partially through the use of training films. As the Navy did not have a sufficient capability to produce large amounts of film on its own, it employed commercial studios to manufacture them. Disney was contracted to create many of these training films.</span>
I think it is B:<span>social change affects personal identity</span>
No they do not i hope this helps you