Un carrito con un cañón accionado por resorte dispara verticalmente una esfera
metálica como se observa en la figura (considere el suelo como referencia y que
la bala se libera desde el suelo). Si la rapidez inicial vertical de la esfera es 5.0 m/
s y el cañón se mueve horizontalmente a una rapidez de 0.75 m/s, a) ¿a qué
distancia del punto de lanzamiento la esfera vuelve a caer en el cañón, y b)
esperaría usted que la bala tuviera un movimiento acelerado en el eje horizontal
si el cañón estuviera acelerando al momento de ser lanzado?

Acup of coffee sits on the dashboard of an automobile. the car goes around a sharp curve. even though you hold the cup still, coffee still splashes out. this can best be explained due to a) density. b) friction. c) gravity. d) inertia.

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.