An object has an actual mass of 34.85 grams. Johnny measures the object to have a mass of 35 grams after rounding. What is Johnny's percent error of the object?

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.

What’s the theoretical yield of solid lead

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility