Determine el valor del desplazamiento para una persona que avanza hacia el norte 7 metros y después recorre 4 metros hacia el sur-este, formando un ángulo de 60° con la horizontal.

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy