(12 points)Which option is an example of chemical energy being transformed into electrical energy?
A. A rocket engine igniting its fuel during liftoff
B. A battery powering a flashlight
C. A plant storing energy from the Sun in its leaves
D. Lightning striking a tree

Aballet student who learns with the of his instructor is demonstrating learning.

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?