Acyclist is riding along at a constant velocity of 15 m/s. he then accelerates at a uniform rate of 0.50 m/s over a distance of 64m. how long did he accelerate for?

Arock collection comes from which part of earth?

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton

How are positive ions different from neutral atoms