4 The temperature at the center of the sun is 1.55 x 10' K. Express this in degrees
Fahrenheit.
OA (2.33 x 106 °F
0 B (1.01 * 109°F
OC (3.22 x 108, °F
OD (2.79 x 107°F

If the heat engine is a perfect carnot cycle engine, thenefficiency = (t2-t1)/t2   where t1=temperature of cold reservoir ( ° k) = 135            t2=temperature of hot reservoir ( ° k)   = 325thereforeefficiency = (t2-t1)/t2 = (325-135)/325 = 0.5846 = 58%  note: this is the theoretical maximum efficiency of a perfect heat engine.   real-life engines do not achieve this value.

The answer is: 6.3mi got it right

The answer is that they are composed mostly of liquid water.

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.