Fill in the blanks
cause materials
the subject is wave properties

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?

Abus travels 280km south along a straight path with an average velocity of 88km/h to the south. the bus stops for 24 min, then it travels 210 km south with an average velocity of 75 km/h to the south. how long does the total trip last?