Suppose we want a satellite to revolve around the earth 5 times a day. what should be the radius of its orbit? (the mass of the earth is 5.97 × 10^24 kg, g = 6.67 × 10^-11 n · m^2/kg^2, and you can neglect the presence of the moon.)

To solve this exercise we must apply the concepts related to the balance of forces.

For this particular case the force caused on the satellite from the planet must be equivalent to the Centrifugal Force, that is

Where,

G = Gravitational Universal Constant

M = Mass of earth

m = mass of satellite

r = Distance/Orbit

Using the concept of Period through the angular velocity we have,

Finally re-arrange the equation to find the orbit and replacing, we have,

Therefor the orbit would be 14400 kilometers

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.