Acertain mountain road is inclined 3.1° with respect to the horizon. what is the change in altitude of the car as a result of its traveling 2.90 km along the road?

Use vsepr theory to predict the molecular geometry of the molecule hcn.

Idon’t know the answer to it and am stuck.

Aman walks foward on a bus. to a stationary obserrver, the bus moves east at a speed of 13 m/s if the man moves 0.7 m/s east relative to the bus. what is his velocity in the frame of reference of a stationary observer?