Answer:
23 m/s
Explanation:
The net external force on the propeller is 17N
The airplane is 0.75 kg
Therefore the acceleration of the plane can be calculated as follows
= 17/0.75
= 23 m/s
Hence the acceleration of the airplane is 23 m/s
The correct answer is:
same number of protons
Explanation:
Uranium is the complex atom that happens in nature. Uranium has 92 protons and 92 electrons. Similar other heavy atoms such as iron, uranium atoms have added neutrons than they do protons. Not all uranium atoms have the same number of neutrons.
Based on relative bond strengths, classify these reactions as endothermic (energy absorbed) or exothermic (energy released):
Endothermic
B2+C2-->2BC
A2+C2-->2AC
<span>A2+B2-->2AB</span>
Exothermic
AB+C-->AC+B
A+BC-->AB+C
Answer:
720,000
Explanation:
change in momentum = m (v2-v1)
= 45,000(258-242)= 720,000
