I’m new but how do you friend people and except friend request

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

Which notation is used to represent an alpha particle? a. b. c. d.