What is the root word for the term pericardiectomy?
a. cardi/o
b. pericardi/o
c. cardiect/o
d. peri/o

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?