A veterinarian thinks that a dog has swallowed a key ring. Which types of electromagnetic waves is the doctor most likely to use to check the dog?

What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )

At which latitudes shown in the image of earth do people experience the greatest tangential speed?

Which of the following is best determined by applying the principles of relativity and uncertainty rather than newtonian physics? a.the velocity of a satellite b.the speed of an object moving at close to the speed of light c.the length of an accelerating race car d.the momentum of a plane