Apair of charged conducting plates produces a uniform field of 12,000 n/c, directed to the right, between the plates. the separation of the plates is 40 mm. an electron is projected from plate a, directly toward plate b, with an initial velocity of v0

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?