Left over from the big-bang beginning of the universe, tiny black holes might still wander through the universe. if one with a mass of 3 × 10^11 kg (and a radius of only 1 × 10^-16 m) reached earth, at what distance from your head would its gravitational pull on you match that of earth's? assume free-fall acceleration ag=9.83 m/s2.

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.

Observations show that interstellar clouds can have almost any shape and

X-ray crystallography is used to see the structure of molecules. scientists have used the technique to find the structure of cholesterol an important biological molecules knowledge of a structure of cholesterol is because it may affect?