Space probes and other long-distance vehicles are designed with small rockets to allow for mid-course corrections. An orbit can be defined by ro and vo . If a satellite is launched in a direction parallel to the surface of the earth (see Fig below) with a velocity of 36000 km/h from an altitude of 500 km. Apply the principles of conservation of energy and conservation of angular momentum to the orbit insertion point and the point of minimum altitude to determine: (use EXCEL or MATLAB to generate and tabulate the data.)

6 cos 34, 6 sin 34 trig

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

the inner core.

good luck: )

klicker