A Carnot engine whose low tempertaure reserviour is at 27 C has an efficiency of 37.5%. The high tempertaure reserviour is at ?(in C)

Sure, here are the step-by-step solutions: 1. Calculate the force exerted by one particle on another using the formula $F=\frac{G{m}_1{m}_2}{r^2}$ where $G$ is the gravitational constant, $m_1$ and $m_2$ are the masses of the two particles, and $r$ is the distance between them. $F=\frac{6.67\times 10^{-11}\times 1\times 2}{(0.5{)}^2}=5.34\times 10^{-10}N$ 2. Calculate the acceleration of the heavier particle using the formula $a=\frac{F}{m_2}$ where $m_2$ is the mass of the heavier particle. $a=\frac{5.34\times 10^{-10}}{2}=2.67\times 10^{-10}m/s^2$ 3. Interpret the result. Gravitational force may be weak between two particles, but it is the force that binds our solar system and the universe of all galaxies and other interstellar systems together.