Question

get more points..............

solve any 3 or 2 problems​

Answer 1

Answer:

Explanation:

hala

2  we know, escape velocity ,

where R is the radius of the earth, g is acceleration due to gravity.

from data, R = 6400km = 6.4 × 10^6 m

g = 9.8 m/s²

so, escape velocity ,  = 11.2 km/s

now, we also know, escape velocity is directly proportional to square root of mass of the earth,

so,

where,  indicates escape velocity of the earth made of wood.

given,  = 10% of  or 0.1

so,

or,

hence, escape velocity of the earth made of wood is 3.54 km/s

3