Ray runs 4m north,8m east and then 4 feet south. What is the distance?

Which accounts for an increase in the temperature of a gas that is kept a constant volume

Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.

Would it be correct to say the doppler effect is the apparent change in the speed of a wave due to the motion of the source? be sure to fully explain your position using at least 3 complete content related sentences.