A mother and daughter are walking through a revolving door together. The door has a rotational speed of 12 rpm. The mother has a tangential velocity of 6 m/s and she is 3
meters from the center of the door. The daughter is i meter from the center of the
door
a. What is the rotational speed of the daughter?
b. What is the tangential velocity of the daughter?
c. If the mother experiences a centripetal force of 900 N, what is her mass?

With these questions , 15 pts & brainliest

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

How to calculate voltage drop in a series circuit