All categories

3 years ago

Why are satellites placed into orbit at least 150 km above Earth’s surface?

Physics

2 answers:

il63 [147K]3 years ago

5 0

Answer:

Satellites are placed into orbit at least 150km above Earth's surface to ensure that they remain above the atmosphere.

The velocity required to keep a balance between the inertia of the motion of the satellite and the earth's gravitational pull, which is called the orbital velocity, essentially depends on its distance above the surface of the Earth. The higher this distance, the longer the satellite will stay in the orbit. Otherwise it might run into the atmosphere and could get burnt up there.

hodyreva [135]3 years ago

4 0

Satellites are placed into orbit at least 150 km above Earth's surface to be above the atmosphere.

You might be interested in

Compare these two waves.

Anastaziya [24]

Answer:

id 272 966 3863

Pas 161005

5 0

2 years ago

Name three situations in which force is created. describe the cause of the force in each situation

Darina [25.2K]

One situation in which force is created is when an object is moving and a force is created to stop that movement. Second situation is when an object is moving circularly and a force is created to move it towards the middle of the circle. The third situation is when a force is created that goes in the same direction as an object that is in movement.

6 0

3 years ago

types of plate boundaries where two plates separate or move apart?? does anyone know please help ??????

Shtirlitz [24]

Erosion i belive it is called

7 0

3 years ago

Read 2 more answers

Natalie lifts a 15-kg rock from the ground onto a 1.5 meter high wall. what is the amount of potential energy she has given the

Zina [86]

The amount of gravitational potential energy acquired by the rock is equal to:
$\Delta U = mg \Delta h$
where
m is the mass of the rock
g is the gravitational acceleration
$\Delta h$ is the increase in height of the rock

Substituting the data of the problem, we find
$\Delta U=(15 kg)(9.81 m/s^2)(1.5 m)=220.7 J$
So, Natalie gave 220.7 J of energy to the rock.

4 0

3 years ago

Prove that s=ut+½at²

katrin2010 [14]

Explanation:

Distance travelled = Area under the line

= ut + ½ (v-u)t

Acceleration (a) = (v-u)/t and so (v-u) = at

Therefore,

Distance travelled (s) = ut + ½ (v-u)t = ut + ½ (at)t = ut + ½ at²

Thus,proved.

3 0

3 years ago