a physics teacher walks at a very constant and amazing velocity of 2 m/s. a sneaky and disgruntled student stands on top of a 20m building and plans to drop the balloon on the head of the caring and genuine 2m tall physics teacher below how far should the amazing teacher be from the impact point when the disingenuous student releases the balloon of fury?

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 : )

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.