When a lamp is turned on, only about 10% of the energy is transformed into light. what happens to the rest of the energy?
a. the remaining energy is destroyed
b. energy that is not transformed into light becomes thermal energy
c. the rest of the energy is changed into a solid state of matter
d. energy is recycle back into the electrical circuit

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3