In a certain region of space the electric potential is given by v ar2y - bxy2, where a = 5.00 v/m3 and b 8.00 v/m3. calculate the magnitude of the electric field at the point in the region that has cordinates z= 0 1.70 m, y 0.400 m, and three significant figures and include the appropriate units. express your answer e 6.57 previous answers submit correct part b calculate the direction angle of the electric field at the point in the region that has cordinates x = 1.70 m, y = 0.400 m, and express your answer in degrees vi axd ? a , measured counterclockwise from the positive x axis in the xy plane 237.1

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