Amass of gas under constant pressure occupies a volume of 0.5 m3 at a temperature of 20°c. using the formula for cubic expansion, what will be the volume at a temperature of 45°c without a change in pressure?

a. 0.0228938 m3
b. 0.0457875 m3
c. 0.5228938 m3
d. 0.5457875 m3

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.

Explain that newton first law, second law and third law of motion?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.