Answer:
(a). The weight of spacecraft at height 6450 km is
.
(b). The weight of spacecraft at height 33700 km is 182.46 N.
Step-by-step explanation:
Given that,
Radius of earth = 6450 km
Weight of spacecraft = 7070 N
We need to calculate the weight of the spacecraft at a height 6450 km above Earth’s surface
Using formula of weight

Where, W = weight of spacecraft
h = height
Put the value into the formula


(b). We need to calculate the weight of spacecraft at height 33700 km
Using formula of weight


Hence, (a). The weight of spacecraft at height 6450 km is
.
(b). The weight of spacecraft at height 33700 km is 182.46 N.