Answer:
Explanation:
Given
mass of each arrow=0.1 kg
velocity of arrow=30 m/s
One arrow is fired u=due to east and another towards south
Momentum of first arrow


Total momentum P


magnitude 
direction

clockwise w.r.t to east
Yes fishnet cudhejeiei. Jen did she
You would make rings of clay and then place the beads on the rings (one on each) at various places and one in the center for the nucleus.
The reason why the snails are dead because the snails lack oxygen for it is a model of closed ecosystem. Another reason to this is that they lack abiotic factors that they need in surviving or as they live for the place that they are living lacks a lot and are not enough for them to last or survive. Lastly, the water could have not been a contributor for them to live for they may not be able to live in a water environment and could only dwell in land.