39.2 m/s is the launch velocity.
This will make the velocity zero after 4 seconds, and then 32.9m/s after 8 seconds as it lands back down.
Answer:
c. Fission and fusion are two processes that release very little amounts of energy.
Explanation:
This statement is false. In fact, both fission and fusion are processes which release very large amounts of energy. The statement can be rewritten as it is true as follows:
"Fission and fusion are two processes that release very large amounts of energy."
Fission occurs when a large nucleus break apart, splitting into smaller nuclei, while fusion occurs when two light nuclei combine together into a larger nucleus. In both cases, the mass of the reactants is larger than the mass of the final products, so some of the mass has been converted into energy, according to Einstein's equation:
where
E is the energy released
is the mass lost in the process
c is the speed of light
Since c is a very large number (), we see that even a very small mass causes the released of a huge amount of energy, so both fission and fusion release large amounts of energy.
Answer:
somewhere between 32 m/s and 2 m/s
Explanation:
If the acceleration is applied in the same direction as the original motion, the motion increases.
17 + 3(5) = 32 m/s
If the acceleration is applied in the opposite direction as the original motion, the motion decreases.
17 - 3(5) = 2 m/s
If the acceleration is applied at an angle to the original motion, then we need to vector add original 17 m/s and the acceleration caused 15 m/s to find the final result. We would need the angle in ANY of these cases as velocity is a vector.
B.Because you cant pull out whenever you want just because you have the right away. Hope this helps.