Review conceptual example 2 as background for this problem. a charged particle moves through a velocity selector at a constant speed in a straight line. the electric field of the velocity selector is 5400 n/c, while the magnetic field is 0.344 t. when the electric field is turned off, the charged particle travels on a circular path whose radius is 5.88 cm. find the charge-to-mass ratio of the particle.

69. air frictionthe velocity of the satellitea. decreases b. increases c. sometimes increases sometimedecreases d. no effect at all70. the unit of gravitational potential energy isa.jouté b.watt c. newtond.pascal71. which of the following is not influenced by a magneta. cobalt b.copper c.irond. nickel72. one joule of work done in one second by unit positive chargea.1 watt b.1 volt c.1 js d. none73. the most deviated colour of light after passing through a prisea. violet b.red c. green d.yellow4. a coin is placed below a beaker fill with water upto 12 cm isdisplaced by water isa. 9cm b.6cmс.3cmd.7cm