Answer:
Scientists at IIT Roorkee are testing a floating device that can generate electricity from flowing surface water of rivers and streams, paving the way for an alternative source of renewable energy.
Explanation:
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By definition,
Momentum = Mass x Velocity.
For mouse of mass, m, and velocity components (Vx, Vy),
the components of momentum are
px = m*Vx
py = m*Vy
Construct a table to display m, Vx, Vy, px, and py as shown below.
m, kg Vx, m/s Vy, m/s px, (kg-m)/s py (kg-m)/s
---------- ---------- ---------- ----------------- ----------------
0.0227 0.517 -0.493 0.0117 -0.0112
0.0217 -0.603 -0.309 -0.0131 -0.0067
0.0215 0.373 0.477 0.0080 0.0103
0.0235 -0.853 0.955 -0.0200 0.0224
Answer:
Its gravity potential energy is 39,240 J
Explanation:
The gravity potential energy of a body on the earth's surface is the energy a body under the influence of gravity possesses by virtue of its elevation from the surface of the earth.
We can calculate the GPE using this formula
from the problem given, we have m= mass= 20 kg
g = gravitational constant = 9.81m/s2
height = 200m
Hence, Its gravity potential energy is 39,240 J
Flux is the presence of a force field in a specified physical medium, or the flow of energy through a surface. In electronics, the term applies to any electrostatic field and any magnetic field . Flux is depicted as "lines" in a plane that contains or intersects electric charge poles or magnetic poles.
Just look it up
Sustainable crops are grown in a different manner from industrial crops. Sustainable crop farmers focus on ensuring that their farming practices can be sustained over time and do not cause undue damage to the environment.
•Minimal to No Pesticide Use
•Limit Environmental Damage
•Focus on Soil Health
•Sustainable Seed and Plant Varieties
(More in website beneath)
Further Info/ Source: http://www.sustainabletable.org/249/sustainable-crop-production