2 Five faces of a homogeneous cube of mass m 4 0 g are

Last updated: 6/12/2023

2 Five faces of a homogeneous cube of mass m 4 0 g are painted in white reflects all wavelengths and one face in black absorbs as well as radiates wavelengths and the cube is placed in vacuum in free space at a very low temperature near absolute zero Initially when the cube is at rest it is given Q 900 J of heat As it cools down due to heat radiation it starts moving slowly Estimate its terminal speed Speed of light is c 3 108 m s