Carla draws two circuit diagrams that connect the same components in different ways, as shown. which statement about the circuit
1 answer:
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Answer:
(C) All spontaneous nuclear reactions are exothermic.
Explanation:
the answer is option C
Here the Spontaneous nuclear reactions occur on its own. You don't have to have any outside force. Mass defects are converted into energy during the reaction.
Mass defects are the difference between the overall product mass and the overall reactant mass.
The expression ' ' shows both the mass defect and the energy emitted, where, C is the speed of light.
Because energy is always released in spontaneous nuclear reactions, all nuclear spontaneous reactions are always exothermic.
Hence the correct option is C
Answer:
17.6 m/s²
Explanation:
Given:
= 90 m/s (final velocity)
= 2 m/s (initial velocity)
Δt = 5s (change in time)
The formula for acceleration is:
= Δv / Δt
We can find Δv by doing
Δv = -
Replace the values
Δv = 90m/s - 2m/s
Δv= 88m/s
Using the equation from earlier, we can find the acceleration by dividing the average velocity by time.
= Δv / Δt
=
acceleration = 17.6