Adumbbell-shaped object is composed by two equal masses, m, connected by a rod of negligible mass and lengthr. if "i1" is the moment of inertia of this object withrespect to an axis passing through the center of the rod andperpendicular to it and "i2" is the moment of inertia withrespect to an axis passing through one of the masses is i1 greaterthan, equal to, less than, or noncomparable to i2?

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