Pretty sneaky, I must say !
Work = (force) x (distance)
That formula says nothing about the directions of the force OR
the distance. As long as they're both in the same direction, they
can both be horizontal (sliding a crate on the floor), vertical (lifting
something), or on any slant in between.
Roger's force and distance are both in the same direction ... the
direction of the incline ... so
Work = (60 newtons) x (10 meters) = 600 joules.
M1*V1 + M2*V2 = M1*V + M2*V.
1400*25 + 1800*20[180+40]=1400*V+1800*V.
Divide both sides by 100:
14*25 + 18*20[220o] = 14V + 18V.
350 + 360[220o] = 32V.
350 - 276-231i = 32V.
74 - 231i = 32V.
242.6[-72.2o] = 32V.
V = 7.6m/s[-72.2o]=7.6m/s[72o] S. of E.
If the Sun disappeared suddenly, we wouldn't know about it for about 8 minutes ... that's how long it takes for heat and light from the Sun to get here to Earth.
8 minutes after the Sun disappeared, the sky would turn totally black. All plants would immediately stop growing ... including all the plants that people or animals eat to live.
Then, after a few more minutes, we would start to notice that it was beginning to slowly get cooler, and that would continue until Earth was too cold for anything to live on it.
Answer:
Explanation:
Given
Two forces 
and 
at an angle of 
As resultant force is zero therefore horizontal component as well as vertical component of force is zero
squaring and adding 1 and 2
Divide 1 and 2 to get 
Answer:
There are 5 general layers; organism, population, community, ecosystem, and biosphere.
Explanation:
Hope this helps!
