prajwal5090 Asked: December 2022 what are the differences between the mass of an object and its weight 3 marks question i need expert answer please
prajwal5090 Asked: December 2022 who discovered the value of g universal gravitation constant only for 1 mark 9 th class
prajwal5090 Asked: December 2022 when a carpet is beaten with a stick dust comes out of it explain 2 marks question