A66.5kg astronaut is doing a repair in space on the orbiting space station. she throws a 2.30kg tool away from her at 3.10m/s relative to the space station
a) with what speed will she begin to move?
b) in what direction will she begin to move?
a) opposite to the direction in which she throws the tool
b) to the direction in which she throws the tool

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.

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

How many neutrons does plutonium -196 with an atomic number of 78.