Which of the following optical media (bd-r, blu-ray, dvd-rw, and dvd ds [double-sided] ): a) is capable of multiple rewrites and b) has the largest capacity?

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?

Write a hypothesis about the effect of increasing resistance on the current in the circuit. use theformat and be sure to answer the lesson question. “how do changes in voltage or resistance affect current in an electric circuit? ”

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.