Experimento de atar una pelota a una cuerda y girarla: ¿Por qué esta fuerza es la que permite a la pelota cambiar de dirección en cada instante?

Write the function getkthdigit(n, k) that takes a possibly-negative int n and a non-negative int k, and returns the kth digit of n, starting from 0, counting from the right

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings