A satillite is orbiting the earth at a distance of 1.00X10^3 km above the surface of the earth. What is it's speed?

see the first post I outlined for you.

To calculate the speed of a satellite orbiting the Earth, we can use the formula for the orbital speed:

V = √(G * M / R)

Where:
V is the orbital speed
G is the gravitational constant
M is the mass of the Earth
R is the distance between the satellite and the center of the Earth (not the surface)

First, let's determine the value of these variables:

Gravitational constant (G):
G = 6.67430 × 10^-11 N(m/kg)^2

Mass of the Earth (M):
M = 5.972 × 10^24 kg

Distance above the surface (R):
R = Distance to the center of the Earth + Radius of the Earth
= 1.00 × 10^3 km + 6.371 × 10^3 km

Converting the distance to meters:
R = (1.00 × 10^3 + 6.371 × 10^3) × 10^3 m
= 7.371 × 10^6 m

Now, we can substitute the values into the formula:

V = √(6.67430 × 10^-11 N(m/kg)^2 * 5.972 × 10^24 kg / 7.371 × 10^6 m)

Calculating this expression will give us the speed of the satellite.