Can someone please help me with this.. Q. A sphere of mass 10.0 was charged negatively. It was held, floating 2.5cm above an object carrying a charge of -1.4 ×10^-7C. what charge would be carried by the sphere.

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good

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?

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic