If the orbital velocity of a satellite is 2 rad/s then what will be the period of satellite. Select one:

a. 2 sec

b. 3.14 sec

c. 6 sec

d. 8 sec

Using the orbital velocity as deg/time  or the angular speed:

1 rev / sec = 2 * pi rad / sec   since there are 2 pi rad in a revolution

2 rad/sec = 1 / pi rev/sec  = f   from above

P = 1 / f = pi sec/rev = 3.14 sec/rev

sonar - device which is used to find the submit submarines, sankalp ship. sonar waves consists of a transmitter and detector which are installed in the observation centre on board of a ship. the ultrasonic waves are sent into the sea at high frequency about 1000 khz in all direction.

positive reinforcement? ?