Amodel rocket is launched from point a with an initial velocity of 86 m/s. if the rocket’s descent parachute does not deploy and the rocket lands 104 m from a. determine the angle that the initial velocity forms with the vertical

Hariet tubman was the first person to discover electricity so b will be your )

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to move. 

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.