I’m assuming we’re suppose to get some kind of graph but, Instantaneous speed is the speed that is happening right now. Like driving a car at 15k/h. The instantaneous speed of the car 15k/h. On the graph, at 5s. Wherever the line is, will tell you what the speed is.
        
             
        
        
        
*may be egg shaped
*has no new stars being formed 
*has almost no gas or dust between stars
I literally just took notes on elliptical galaxies a week ago wow
 
        
                    
             
        
        
        
Not 100% but i think it'll cause the earth to rotate slightly slower, its definitely not the last one though
        
                    
             
        
        
        
Answer:
180^2 + 390^2 = force ^2 (Pythagoras) root of force^2 = 429.5N approx resultant force Acceleration = Force/Mass 429.5/270 = 1.5907 ms^-2 in a Southwesterly direction.
Explanation: