An object has a weight of 500 N on Earth. Calculate the mass of the object

weight of the object = 500 N

mass = ?

Weight of the object on earth= mass × acceleration due to gravity of the earth (g)

we know the value of g is 9.8 m/s^2 or 10m/s^2 , for easy calculation here take the value of g as 10m/s^2

w = m . g

m . 10 = 500

m = 500/10 = 50 Kg

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.

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.