Hubble noticed that the galaxies were moving away from us, which meant the universe was expanding. 
This is why constellations change over time. In some years, the Big Dipper won't actually look like a dipper anymore.
        
             
        
        
        
<em>Convert 1nanosecond in to its SI init</em>
 
<em>In SI units, nano is 1000th part of micro which in turn is 1000th part of mini which in turn is 1000th part of main unit. Now, when you affix nano to any unit, here in case, second, it means that you are referring to 1000th part of 1000th part of 1000th part of second or in short, 1000000000th(10^9) part of a second.</em>
<em>In SI units, nano is 1000th part of micro which in turn is 1000th part of mini which in turn is 1000th part of main unit. Now, when you affix nano to any unit, here in case, second, it means that you are referring to 1000th part of 1000th part of 1000th part of second or in short, 1000000000th(10^9) part of a second.So to convert nanosecond into second, just multiply the nanosecond with 0.000000001 or (10^-9)</em>
 
        
             
        
        
        
Answer:
Parallel circuits are used in homes because the loads can be operated independently of each other. That means that you can have an electrical item turned on and running without needing to have all of the other loads on and running as well.
 
        
             
        
        
        
matter = solid, liquid gas.
energy typyes, kinetc in a gas, kinetc and electrostatic in solids and liquids
 
        
             
        
        
        
Answer:
84 kj/min = 1.4 kj/sec
Power Out / Power In = Heat Out / Heat In - Coefficient of Performance
1.4 kj/sec / 1.2 kj/sec = 1.17 = COP