Calculate the kinetic energy of a hollow sphere having a mass of 1500 gm with a diameter of 3 m, and moving around its own axis with an angular velocity of 66 degrees/sec.

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

What is the momentum of 70 kg runner traveling at 10 m/s?

Acircuit is built based on this circuit diagram what is the equivalent resistance of the circuit? a.0.61 b.1.6 c.7.5 d.18