Which of the following motions has a straight line? A. Steady motion of the plane in the sky
B. Movement of people sitting in cars from Hanoi to ThaiNguyen
C. Movement of the clock hands
D. Movement of the cabin on the sun's rotation

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot