Answer:
C.
Explanation:
The velocity is going down at the beginning of Carla's trip, so acceleration is decreasing; this means she was slowing down. Then, the line hits 0, which means she isn't moving. Then, she started moving again after 4 seconds, so she was speeding up.
Answer:
Natural gas
Explanation:
Nuclear is from splitting atoms in a nuclear power plant and doesn't emit GHG.
Hydroelectric is a clean energy which powered by water currents in turn not emitting any GHG.
Geothermal is heat captured from underneath the surface and within Earth and doesn't have GHG once the contruction of putting pipes underground is done.
Natural gas once burned emits GHG.
Answer:
Explanation:
= Permittivity of free space =
V = Volume of cube =
= Charge density =
Electric flux is given by
The electric flux through the surface of the cube is
Answer:
Acceleration is any change in velocity.
Explanation:
Speed is not always changing when accelerating. In fact, when an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing. So the correct answer is velocity.