A child slides down an icy hill on a tube. Once the child reaches the flat surface at the bottom of the hill, she is traveling at a speed of 15 m/s. If the coefficient of kinetic friction between the tube and the snow is 0.15 and the combined mass of the child-sled system is 40-kg, how far will the child slide before coming to rest?

Un jugador de beisbol batea un foul recto en el aire.la pelota deja el bate con una rapidez de 120 km/h. en ausencia de resistencia del aire. ? cual sera la rapidez de la pelota cuando la atrape el catcher

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.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass