Consider two ideal gases, a & b, at the same temperature. the rms speed of the molecules of gas a is twice that of gas b. how does the molecular mass of a compare to that of b? (a) it is twice that of b. (b) it is one half that of b (c) it is four times that of b (d) it is one fourth that of b. (e) it is 1.4 times that of b.

option (d)

Explanation:

The relation between the rms velocity and the molecular mass is given by

v   proportional to  \frac{1}{\sqrt{M}} keeping the temperature constant

So for two gases

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

there are no components of a physical goal mentioned on the list of choices that you've provided.