<span>An automobile with a mass of 1450 kg is parked on a moving flatbed railcar; the flatbed is 1.5 m above the ground. The railcar has a mass of 38,500 kg and is moving to the right at a constant speed of 8.7 m/s on a frictionless rail...
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Hello! Gravity is lost when you reach the outside of the Earth's orbit! So you would have to overcome gravity in order to officially be in space. Gravity is the first thing a rocket must overcome to reach space.
I hope this helped!
I am, yours most sincerely,
SuperHelperThingy
Is there a question? Because All your doing t explaining a british philosopher to us..
Answer:


Explanation:
The bulldozer is moving the rocks as one system, the weigth for the complete system is:

From newton´s second law the acceleration can be related to the force by:

on the middle rock we have the force F12 from the first to the middle rock on the direction of movement and F32 from the las rock to the middle rock on the opposite direction of movement.
For the last rock to accelerate at the same rate it must be subjected to a force:

This equals the force F32 on the opposite direction. the resultant force on the middle rock to mantain this acceleration should be:

The sum of all the forces applied to the middle rock is:

Solving for F12:

As we know that Nth harmonic of the string is given by

now here we will have




now from above formula we have


now for first harmonic N = 1

for second harmonic N = 2

for third harmonic N = 3