Answer:
496.7 K
Explanation:
The efficiency of a Carnot engine is given by the equation:

where:
is the temperature of the hot reservoir
is the temperature of the cold reservoir
For the engine in the problem, we know that
is the efficiency
is the temperature of the cold reservoir
Solving for
, we find:

3. Sand has a low specific heat compared to air
Answer:
The amplitude measures the height of the crest of the wave from the midline. The wavelength measures the horizontal distance between cycles.
Explanation:
An energy that is related to mass and speed would most likely be kinetic energy.
K= 1/2mv^2