The Hall affect is used to measure the carrier density of a thin sheet of electrons. When a current of 8.0 A flows through the 12-mm thickness electron sheet, a magnetic field of 0.75 T perpendicular to the sheet produces a voltage of 0.53 mV across the width of the sheet. What is the carrier density in the electron sheet?

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Which of the following statement is false