the radius of earth is about 6.38 x10^3 km. A 7.20 x10^3 N spacecraft travels away from earth. What is the weight of the spacecraft at the following distances from Earth's surface? a) 6.38 x 10^3 km

Explanation:

g = Acceleration due to gravity =

w = Weight of spracecraft at the surface =

m = Mass of spracecraft

R = Radius of Earth =

h = Elevation =

G = Gravitational constant =

M = Mass of Earth =

From the gravitational law we have

The weight of the spacecraft at the given height is

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is