4 - The diagrams represent four simple machines. The arrows in each diagram indicate the direction of the force being applied. Which machine is changing the direction of the force being applied by the person? *

The modern-day generator works on the principle of electromagnetic induction discovered by michael faraday in 1831-32. faraday discovered that the above flow of electric charges could be induced by moving an electrical conductor, such as a wire that contains electric charges, in a magnetic field.

Answerthe valence of an element or radical is equal to the number of positive or negative charges on the ion.

Answerthe global climate during the paleogene departed from the hot and humid conditions of the late mesozoic era and began a cooling and drying trend which dispite having been periodically disrupted by warm periods such as the paleocene-eocene thermal maximum, persists today;