Answer:
- 9m/s²
Explanation:
Given parameters:
Initial velocity = 40m/s
Time taken = 3s
Final velocity = 13m/s
Unknown:
Acceleration of the car = ?
Solution:
Acceleration is the rate of change of velocity with time taken.
Acceleration = 
Acceleration = 
= - 9m/s²
The correct option is;
The voltages become negative instead of positive and keep the same magnitudes
Explanation: Here we have that there is a change in direction from positive to negative with the direction pointing to opposite of the initial direction whereby the field strength does not change due to the reversal of the. Therefore the voltage becomes negative instead of negative while keeping the the magnitude.
That is there is a electric field reversal or a change electric field direction.
The energy of nuclear fission is released as kinetic energy of the fission products and fragments, and as electromagnetic radiation in the form of gamma rays; in a nuclear reactor, the energy is converted to heat as the particles and gamma rays collide with the atoms that make up the reactor and its working fluid, ...
