A roller coaster climbing up hill is an example of A. Building up nuclear energy
B. Building up potential energy
C. Building up chemical energy
D. building up kinetic energy

Aforce is a vector quantity because it has both?

Auniform electric field exists in the region between two oppositely charged plane parallel plates separated by a distance of 1.60 cm . a proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate in a time interval of 3.20×10-6 s. 1-find the magnitude of the electric field. use 1.60×10-19c for the magnitude of the charge on an electron and 1.67×10-27kg for the mass of a proton 2-find the speed of the proton when it strikes the negatively charged plate

The diver on the diving board weighs 500 newtons the diving board is 5 meters above the ground what is the divers gravitational