The core temperature of the sun is approximately 2.7 × 10⁷ degrees Fahrenheit. a star has a core temperature ½ that of the sun. what is the approximate core temperature (in degrees Fahrenheit) of the star? ​

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).