Consider two nearly spherical soyuz payload vehicles, in orbit about earth, each with mass 9000 kg and diameter 4.0 m. they are initially at rest relative to each other, 10.0 m from center to center. (as we will see in kepler’s laws of planetary motion, both orbit earth at the same speed and interact nearly the same as if they were isolated in deep space.) determine the gravitational force between them and their initial acceleration. estimate how long it takes for them to drift together, and how fast they are moving upon impact.

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.

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34 degrees fahrenheit

We can infer that star y is closer but other factors must be considered include the heat of the star, the mass, and the brightness of the star. even though star x seems dimmer it may just be less bright or contains less heat.