You turn right on a red light if you are in the right-most lane, you're turning into the left-most lane on the cross road, and no nearby sign prohibits the turn. a. may b. may not c. must d. should

A. may

*filling in the blank bc it says i have to*

must

Explanation:

The must is indicating a necessary condition " no nearby sign prohibit the turn"

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s