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1. the sunlight shining on solar panels is an example of energy being changed into energy. then we turn on a lamp, that energy is changed into energy.

2. when you move your fingers to play the piano, it is an example of energy being changed into energy.

3. making toast in the toaster is energy energy being transferred into energy.

4. the splitting of atoms to create electricity to run to your home is energy being transformed into energy.

5. hot coffee is energy being changed into energy.

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface