•1 if a saturn v rocket with an apollo spacecraft attached had a combined mass of 2.9 × 105 kg and reached a speed of 11.2 km/s, how much kinetic energy would it then have?

Kinetic energy = 1/2 (mass) (speed)²

Kinetic energy = (1/2) (2.9 x 10⁵ kg) (1.12 x 10⁴ m/s)²

= (0.5 x 2.9 x (1.12)² x 10¹³) kg-m²/s²

=  1.82 x 10¹³ Joules

atsanawfullotta joules !

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.

Is this a question of an answer