An element's atomic number is 13. how many protons would an atom of this element have?

If a simple machine reduces the strength of a force, what must be increased?

How many atoms of nitrogen are in the chemical formula ni(w on

Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.