Ten days after it was launched toward mars in december 1998, the mars climate orbiter spacecraft (mass 629 kg) was 2.87×10⁶ km from the earth and traveling at 1.20×10⁴ km/h relative to the earth. at this time, what were (a) the spacecraft’s kinetic energy relative to the earth and (b) the potential energy of the earth–spacecraft system?

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer