What conclusions can you draw about the results of your first cross, between a homozygous red bull (rr) and a heterozygous red cow (rr)?

Imagine this. Below is a punnett square.
          r     R  
  R  | rR | RR|
  R  | rR | RR|

So the conclusions are that there is a 50% chance of it being homozygous, or heterozygous cow. Both would be red, because the red gene is dominant in both outcomes.

Hope this helps.

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.