Un tubo en U contiene mercurio, sí se echa 13.6 centímetros de agua en la rama derecha, calcula la altura que sube el mercurio a la izquierda, a partir del nivel inicial.

Auniform solid cylinder with a radius of 10 cm and a mass of 3.0 kg is rotating about its center with an angular speed of 33.4 rpm. what is its kinetic energy?

The vector a? is 3.50 cm long and is directed into this page. vector b? points from the lower-right corner of this page to the upper-left corner of this page and has the components bx=-19.5 cm , by=25 cm. in the right-handed coordinate system, where the +x-axis directed to the right, the +y-axis toward the top of the page, and +z-axis out of the page, find the x-component of the vector product a? ×b? , measured in cm2.

If one object has a large redshift and another object has a small redshift, what can we conclude about these two objects?