Its true hopefully this helps you.
False. It is more expensive to mine minerals in deep water deposits
Answer:
false im just trying to get it if you'd like to give it to me
If you travel 30 miles somewhere and then come home again your distance is 60 miles. Your displacement is 0 because it is the ending position minus the beginning position, which are the same place (home). In other words, displacement is a vector and distance is a scalar.
Answer:
The kinetic energy of the clam at a height of 5.0 m is 5.19 J and the speed of the clam at that height is 9.71 m/s.
<u>Explanation:
</u>
<em>Mechanical energy is constant throughout the travel</em>, we know that <em>mechanical energy is calculated by adding potential energy and kinetic energy</em>. Potential energy = ,
Kinetic energy = and Mechanical energy = Kinetic energy is zero at initial point. Now mechanical energy of clam with m=0.11kg,g=9.81,h=9.8 m is = 0.11×9.81×9.8 = 10.58 J.
Mechanical energy of clam at a height of 5.0 m = =. We know that mechanical energy is constant hence, <em>mechanical energy of clam at height 9.8 m is equal to mechanical energy at height 5.0 m</em>. This is represented as following
10.58 = 10.58 – 5.39 = 5.19 = kinetic energy of the clam is 5.19 J.
Now speed of the clam at height 5.0 m is 5.19 = 94.36 = = 9.71 m/s. The speed of the clam is 9.71 m/s.