Two objects of mass m move in opposite directions toward each other. the green object moves at velocity v, and the blue object moves at velocity 2v. which diagram correctly shows the direction and velocity for each of the objects after an elastic collision?

. The velocity of a mass attached to a spring is given by v = (1.5 cm/s) sin(ωt + π/2), Which of the following is the motion of objects moving in two dimensions

The answer to this one was C, or the third option.

answer: option c. i.e. electric current flowing “downhill” from the negative electrode to the positive electrode in a battery

explanation:

the water analogy to the circuits define the pipes (water flows) to the electric current. now, we know that the electric current flows from the positive terminal to the circuit (as shown in the diagram attached).

hence, option c is the correct answer.

i think the answer is a, hope this is right, that would be my best guess.