Answer:
Burning ethanol releases greenhouse gases. - c.
<span>Thermal energy and light radiation</span>
C. Ways to reduce cost of production
Answer:
ENSO is the most prominent known source of inter-annual variability in weather and climate around the world.
Explanation:
Over a period of 28 months the dominant wind changes from easterly to westerly and back.
Answer:
Mechanical energy = 145 Joules
Explanation:
Given the following data;
Kinetic energy = 115J
Gravitational Potential energy = 30J
To find the mechanical energy;
Mechanical energy = kinetic energy + gravitational potential energy
Substituting into the equation, we have
Mechanical energy = 115 + 30
<em>Mechanical energy = 145 Joules. </em>
Mechanical energy can be defined as the ability (capacity) to do work. The two (2) main types of mechanical energy are;
<em>a. Gravitational potential energy (GPE): it is an energy possessed by an object or body due to its position above the earth.</em>
<em>b. Kinetic energy (KE): it is an energy possessed by an object or body due to its motion.</em>