D. A train takes 4 hours to move from station A to station B. If it moves with a speed of 65 km/h, find the distance between A and B.
E. Give Reason.​

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

Aforce of 8,480 n is applied to a cart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart?

Ais not a mixture. colloid compound suspension solution