What contribution did the author’s use of dialogue in the story?
a. it breaks up the paragraphs and makes reading the story easier.
b. it allows the reader to better understand the characters.
c. it provides a break from the narrative technique.

1. you serve a volleyball with a mass of 2.1 kg. the ball leaves your hand with a speed of 30 m/s. the ball has energy. calculate it. 2. a baby carriage is sitting at the top of a hill that is 21 m high. the carriage with the baby weighs 12 n. the carriage has energy. calculate it. 3. a car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. the car has . calculate it.