Se lanza una piedra hacia arriba, desde el nivel del suelo, con una velocidad inicial de 30,0 m/s. ¿Cuál es la velocidad de la piedra después de 1,50 s?
¿Cuánto tiempo tarda en alcanzar 5,00 m?

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.