As we know that efficiency of engine is given as
also we know that
given that
efficiency = 21%
now we have
now we have
I think it's the first one
<span>In energy transfer, happens from one object to another without changing its form. For example, when you fill a pot of water and sit it on the stove, the water continues to heat until you turn it off. While in a energy transformation, the energy changes forms such as Chemical, kinetic.</span>
A common characteristic among the spiral galaxies is that globular clusters are usually located in the nucleus. By definition, a spiral galaxy is a type of galaxy wherein huge concentrations of cosmic cloud and gas are located in its spiral arms. Our very own Milky Way is a spiral galaxy itself, and the solar system is located at the Sagittarius Arm.
Because the plate doesn't have water, and it's water which is heated by the microwave
