The tangential acceleration of a cart moving at a constant speed in a horizontal circle is
(1) 0.0 m/s2
(2) 9.8 m/s2 in the direction of the velocity
(3) constant in magnitude and directed radially
toward the center of curvature
(4) constant in magnitude and directed radially
away from the center of curvature

In order to place a satellite into orbit, it requires enough fuel to supply the necessary mechanical energy. into what types of mechanical energy does the fuel get transformed?

What is the speed vfinal of the electron when it is 10.0 cm from charge 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