Asilver wire 2.6 mm in diameter transfers a charge of 420 c in 80 min. silver contains 5.8 x 10- free electrons per cubic meter. (a) what is the current in the wire? (b) what is the magnitude of the drift velocity of the electrons in the wire?

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?

The softest and hardest minerals are: softest hardest

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change