The interstate highway system is paid for and maintained by the federal government. There are also other kinds of highways, like state highways and farm-to-market roads, that are not paid for by the federal government, but interstates are a federal project.
        
             
        
        
        
The inclined plane is studied by mechanics and, to calculate it, we use Newton's Second Law.
Is a block of mass “m” supported by an inclined ramp at an angle? with respect to the horizontal plane. Despise the friction.
Forces acting on the body are:  image 1
P: Force weight = P = m.g
Where: g = 9,8 m / s2
m = body mass given in kg.
FN: Normal reaction force to the plane.
When we neglect friction we notice that the body moves downwards. image 2
 
        
             
        
        
        
Answer:
The battle for North Africa was a struggle for control of the Suez Canal and access to oil from the Middle East and raw materials from Asia. ... Oil in particular had become a critical strategic commodity due to the increased mechanization of modern armies.
 
        
             
        
        
        
Darnel’s way of thinking, i.e. “Everyone is always angry at me for doing something!", is a:
“Pessimistic explanatory style”.
<u>Explanation:</u>
Explanatory style is a characteristic of a person which shows how they introspect and explain to themselves how and why certain circumstances keep recurring in their lives.
The thought process of Darnel depicts that he is taking things personally, believing that people get angry at him due to his actions. 
This kind of explanatory style, people tend to think that it is their fault that things are happening in a certain way and that it happens all the time, hence it is kind of global in their lives.
Thus showing a pessimistic explanatory style