Question

answer it please it is important
answer it please it is important please answer it is important please answer
please ​

Answer 1

Answer:

first find its volume which is V=4m×5m×3m

V=60m^3

now mass=volume×density

mass=60×1.29=77.4 N or 77.4 newton

Answer 2

┯━━━━━▧▣▧━━━━━┯

Galileo di Vincenzo Bonaiuti de' Galilei was an Italian astronomer, physicist and engineer, sometimes described as a polymath, from Pisa. Galileo has been called the "father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of modern science". 

┷━━━━━▧▣▧━━━━━┷