A4000 kg satellite is placed 2.60 x 10^6 m above the surface of the earth.

a) find the acceleration of gravity (g) at 2.60 x 10^6 m above the earth.

b) find the critical velocity to maintain a circular orbit at 2.60 x 10^6 m above the surface of earth. (in both m/sec & km/hr)

c) find the period of the orbit.

d) how many orbits will the satellite make in one day?

e) find the escape velocity for a satellite to leave this orbit and escape the gravitational pull of the earth.

f) find the escape velocity for a rocket leaving the surface of the earth.

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards