Answer:
A strong nuclear force pulls together protons and neutrons in the nucleus
Explanation:
Translation
A 100kg roller coaster reaches the first hill at 2m / s. the height of the first hill is 20 meters. *Find the total energy* Question added
Answer:
19820 J
Explanation:
Total energy is the sum of kinetic and potential energy
Potential energy is given by mgh
Kinetic energy is given by
The combination will then be and substituting m for 100 Kg and 2 m/s for v then taking g as 9.81 while h is given as 20 m we obtain energy as
Answer:
285
Explanation:
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- Initial velocity=0m/s=u
- Acceleration=a=5.5m/s^2
#8.1
#8.2
Use third equation of kinematics