Una ingeniera trabaja en una compañía automotriz donde se diseñan motores. Se le pide diseñar pistones fabricados a base de latón los cuales se deslizarán dentro de cilindros de
acero. El motor en el que se usarán los pistones operará entre 20 °C y 150 °C
A. Si el motor alcanza una temperatura de 150 °C y el diámetro de los pistones a
20 °C es de 25,000 cm ¿qué diámetro mínimo deberían tener los cilindros
inicialmente para que los pistones operen correctamente, es decir, no se traben?
(trabaje utilizando 3 decimales).

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

The speed of light can be used to measure the

Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?